Heart Disease :: Amphetamine Addict - Possible Heart Attack?

I'm going to be completely honest and as thorough as possible, I'm an addict, and I've had an addiction to stimulants for the last year and a half (consisting of about 95% amphetamine usage, never used methamphetamine). I usually keep my doses anywhere around 10-60mg cause I never wanted to over do it. Unfortunately, last week I dove in deep to my addiction due to a recent break up, about 4 days ago I did around 130 mg spread out through the day, I felt fine until I took my very last dose (30 mg about), at that point it only increased negative side effects.

After a while of feeling odd and stuff, I began to have trouble breathing and chest pains (I can't remember which started first), it kind of felt like they coincided, but I still would get very minor and infrequent pain without breathing, it felt like I couldn't take a full breath of air, and when I did the chest pain would kick in (more), it felt like a tightening pain. My left arm soon became somewhat numb and tingly, not numb like when you accidentally sleep on it, but just a little numbing that felt like it stretched down my arm through a single vein, the numbness was generally more intense under my armpit and bicep area, and would intensify when I rubbed certain areas. I had a very sore/stiff neck, especially around the area between my shoulder blades and neck, it wasn't on one side, it was mostly in the middle (my neck and back are still sore after this experience, as well as the tingling sensation in my arm but its not at all that bad, and it comes and goes). I had anxiety during this event, and I felt like when people would talk to me I wasn't truly comprehending what they would say, but yet I still was able to reply to them, I just didn't say much or think about what I was saying, I only could pay attention to what was happening to me. I felt like things were kind of slowed down and I was very fatigued and zoned out. I felt as if I was slowly meeting my demise. I believe I got cold sweats a couple times, but not much. I had some heart burn later that night, and the next but its gone.

It came across to me that maybe this was a panic attack but the pain lasted 2-3 hours, after that it wasn't horrible, but it was still somewhat there, and the mental aspect of a panic attack wasn't that intense. I also do think that my left arm may just have "mouse arm" (cant remember medical term), cause I use a computer a lot, a part of my muscle/tendon in my hand has been sore for a while, and it is somewhat acting up now as I type. I really am not sure if a lot of this is me overreacting, or just a placebo effect (I hope so). I've had minor chest pains since I was 13 (I just turned 18), and every time I went in to get my heart checked out, they said I was fine, and that I had a slight irregular heart beat but it was nothing to worry about and a lot of people have it but don't know.

I also have this weird problem with my thought process either that started the night of the incident, or I haven't noticed before. The only way I can explain it is as if my brain buffers for a moment when I go back and forth between two thoughts, it's like I over excite the neurons responsible for those thoughts and I end up overriding my brain for a brief second with confusion, then it's fine. I do have some chest pains now, but it isn't very often, and honestly happens mostly when I think about it or worry about it (same with the left arm), which is why I think I could be conning my self about this entire incident, because I've had panic attacks before but they weren't as bad and were more mental than physical.

It's dumb of me but I never went into the doctors cause 1. I was too paranoid to go in, and 2. I don't want to worry my mom or waste her money just so the doc's (possibly) find nothing. I haven't lately because all I've been doing is researching about this stuff, off and on I think I'm fine and then I don't. So I came here to settle it once and for all, I have a doctors appt. next week anyways so if you guys don't think its serious (I don't, but it could be denial) I'll just wait until then, if it is then I'll go now. I know everybody says "If its your heart then don't risk it", but every time I go in for my heart, it's always nothing.

My family nor myself have a history of heart disease, diabetes, or just flat out obesity. I'm very fit, just oddly muscular for my age, but I don't work out as often as I should now-a-days. I also smoke cigarettes, and my heart pains/arm numbness do come back a bit when I have a cig, but then again it could just be my head. The last time I had any form of a heart test was probably about a year or two ago, it was an EKG and I believe a blood test, but my memory is a bit foggy in that area. My heart rate is normal, I don't know about my blood pressure, but I believe I got a test for it lying somewhere around my house. My last dose of amphetamines was today, yes I know its stupid, but it's literally my last dose (I weaned myself off).

Oh and I did have sex last night, being in the moment I may have over did it (I usually get this feeling just without the numbing), my heart pounded like hell, I got heart burn during it, my left arm and leg became pretty numb, I was kind of tremor-ish, and that's it. Once I orgasmed the numbing went away (except for under my armpit area), and my heart was fine, but beating pretty fast (110bpm).

So do you think I likely had a heart attack? Or do you think it's something else? Or a combination of things? Or simply nothing but a placebo affect or panic attack? And by the way how long does numbing of the left-arm and chest pains last after having a heart attack?