Hey guys, so I haven't been on here in ages because I think I've been getting better, but today I have a problem that's not strictly emet-related, but it's still scary and it's getting me down

I woke up today feeling ill in every way. This has happened twice before, both a couple of years ago, and it's awful. I woke up with the worst headache in the world, aching back, legs, arms, hips, everything. I also had a bit of d* and an awful awful stomach ache. Everything makes me want to cry and I can't move without feeling exhausted. My period is due at the end of this week but this has never happened near it. and I'm terrified that I'm coming down with a stomach virus, even though I was starving earlier and ate a musli bar.

Please help, what's going on? I've had similar symptoms for like 24 hours before but I'm really scared that I'll v or something

Naomi