Side Effects

With this medication Thorazine that i've been taking for a little while, I have been having side effects. The headaches that i've been having that I thought was from my allergies at first, it turns out is probably from this medication. Plus apparently stuffy nose is one of the side effects people have seen with this medication. I know all this can't be from my allergies because i've never seen it this bad. It so much worse than recent years so it's gotta be something else. That's why I know it gotta be the Thorazine. This is all so frustrating. Plus this is making me miss my period. I haven't had my period in so long. And before you ask, no i'm not pregnant because it takes sex to get that way and I haven't gotten any in about 6 years and i'm totally not exaggerating.