Gas menstrual, allergy problems all at once?

I too have noticed that around the change of seasons and around my menstral.. I get much more anxiety and I get sick feeling. I find myself having panic attacks and feeling like im gonna p out and my head hurts really bad. I have a couple questions on here trying to find out what my problems are caused from. No one seems to know. Tuesday is my doctors appt. I guess I will find out.