Does Anti Androgen Pill Cause Dizziness And Weakness?

hi! my name is shandy and i'm 28 y/o, slightly underweight. had labtests (t3, t4, hgb, etc.) and all are normal. i am taking anti-androgen pill for 7months now. i woke up yesterday morning feeling dizzy and had headache for like hours and even analgesic won't stop it. today, this morning same thing happen but it got worse that i vomitted twice. i was about to start another pill but hesitated, because this might be the cause. sometimes i'm having trouble sleeping at night. help!