Thanks for the input everyone. I'm definitely going to bring it up with my pdoc b/c I don't have a therapist (yes, I should have one... new year's resolution is to be more proactive about my mental health).

I never really thought of a correlation between the scratching and nerves/stress but now that I think about it, that may be the case. I don't think it's a med thing because I've done it since wayyy before I ever went on meds. I'm trying to control it by playing with silly-putty but the second I put it down, I unconsciously start scratching... alas! Finals are over next week so hopefully the drop in stress will result in less scratching. I suppose only time will tell!