the last time i had sex was mid April, and since then my periods have been very irregular (more so then normal). also in thw last few weeks i've been eating A LOT, it's like I'm never full. i also get really bad headaches for the last couple weeks and I've been feeling kinda queasy. also ive had weird feeling in my stomach at night and ive been really restless. what do u think is going on? my body doesn't look any different then it normally does.