Adderall Damage?

About 3 weeks ago I started feeling an irregular heartbeat every 5 minutes or so, combined with a jumping sensation in my chest.  I also feel noticeably more short of breath than I used to, and I have to take deep, full breaths to overcome the feeling.

My cardiologist took an EKG and said it looked "normal". He said I had premature ventricular contractions that were likely benign, and that I shouldn't worry about it.

I'm 23 years old and otherwise healthy, but there is something I did not tell my cardiologist out of embarrassment and fear -- last semester at college there were several times when I took around 200mgs of Adderall (adderrall) within a 24-36hr period to stay up and work on homework, and a few more times when I took less than that but more than one is normally supposed to. Other than that, I took a more normal dose (about 20-40mgs), for a total sum of about 20-30 days.

Clearly I should not have done that, and I certainly won't do it again.  Now I am constantly paranoid every day that I have done something to my heart.

The last time I took Adderall (adderrall) was over a month (about 45 days) before I consciously felt my first skipped heart beat, although I might have had them during or right after the Adderall (adderrall) and not identified them as such.  Since my last Adderall (adderrall), I lived a very healthy lifestyle (no substances) and exercised vigorously.

My questions are:

1. What relationship could there be between the Adderall (adderrall) I took and my current irregular heart beat?

2. What type of heart damage could my Adderall (adderrall) use have caused, and how likely is it that it did?

3. My doctor tells me that it is fine for me to exercise vigorously (sprint, lift heavy weights, etc), and that I shouldn't worry about my PVC's at all. But, he did not know about the Adderall (adderrall). Does the Adderall (adderrall) that I took change the analysis?

4. What tests should I get in order to really get the final word on my PVC's and any damage I might have from the Adderall (adderrall)? Time and money are not a factor.

Thanks!

[flowt2]

have u noticed that the answers from the 'medical experts' are not really anwers, more lilke side steps of your question and make u feel no better???