ADHD drug abuse

[enmasse]

For about a year and a half, I was abusing an ADHD medication; specifically, a generic methylphenidate (10mg) that I would crush and snort.  There were some days when I would do 2 or 3 of them, but I would also sometimes go weeks without doing it at all.  I was going through a very hard time in my personal life, and I found (as I'm sure many people do) that this method of drug administration gave me a pleasant, energetic feeling.  I quit doing this about 3 months ago.  I am in otherwise good health; in fact, even during this unfortunate period of drug use, I was running 50 miles/week, going to the gym, and eating very healthy.

I also have severe anxiety issues, and now that I've quit, I am very worried about all sorts of things.  Is there any link between snorting this sort of drug and cancerous tumors?  Any other long-term health issues I should be concerned about?  Coincidentally, shortly before I quit, I had a CT Scan and an EKG for an unrelated matter, and both of them were all clear.  Does the clear CT Scan indicate that no adverse effects have occurred in my brain or nasal region (at least as of that time)?  Does the clear EKG indicate that my heart is functioning properly?  

I also had a physical a few months ago, and the doctor specifically said that the nasal tissue (that which was visible to her) looked perfectly healthy.

I can only find short-term health risks online, so I'm hoping that - having stopped doing this awhile ago - I'm more or less in the clear.  I'm reluctant to talk to my doctor about it.

Thank you.

[enmasse]

Thank you for also answering.  I didn't mean to post twice.

[Julia M Aharonov, DO]

I believe that Ms. Waismann has already answered your question. If there are no obvious signs or symptoms now, you should just concentrate on taking good care of your health from now on. Good luck and stay well.