I just started this anti-depressant for chronic pain purposes a week ago and I just got my period today and i'm having terrible cramps. may i take extra-strength tylenol while on this depressant? (extra-strength just because that's what I have in my medicine cabinet).

Additional info:
I'm 19 years old; have 2 medical conditions: (1) bronchiectasis--a lung condition in which my lungs cannot clear out germs, mucus, etc. by itself and (2) fibromyalgia--condition in which i have widespread muscle and joint pain. Both conditions have no known cure.