winter - I know what you mean. I too went through a "withdrawl". I tend to think it was me getting to know the non-ADHD me. I broke up with my long-term gf within a short time of taking my first dose of dexedrine. It just all made sense! Then I ended up in a rythym of work, home and more work. That lasted for a few months.
Now - after 13+ months of treatment I go out. I smile at strangers and (shudder) even walk in crowded malls and sit down in busy restaurants! I still have times where I'd rather be alone - but that passes fast.
Hell, I have even started dating again! I had never asked a woman out in the 20-some years of adult ADHD time without meds. Now - I've gone on a couple non-serious dates with 2 second dates. And they went pretty well I think!
One of the things I notice that surfaced was that I suffer also from Generalized Anxiety. I found out when I began to discuss my troubles with my psychiatrist. Even more amazing after telling my mother about it over the phone she mentioned that both of my younger sisters are suffering from GA as well! One of them is actually nearly housebound from it. So it's there and be aware of the possibility.
Hope this helps you. Good luck to you.
Is it normal to feel like a loner and not want to be social and around people or your friends when you first start taking adderall? I read somewhere its normal and will eventually go away... is this true?