I've gotten like that a few times, try some pedialite to get bk wat you lost. R poweraid r sm drinks like that. Agua chili kinda like ceveche wrks great as well.
Probably not. Your body is very weak and can easily contract disease during the hang over period. You probably got the flu during that time, are you sore, achy, cold, or running a fever?
You said a sharp pain in the stomach, is the pain a little lower than your ribbcage? Or lower by your pelvis? If it is indeed your stomach area that is in pain it is probably due to lack of food.
You also mentioned going #3 a lot. This is also a symptom of the flu. Try not to eat yogurt, that won't help too much.
Try crackers and water. Slowly eat them, don't feast on them. Once you have some food in your stomach try taking some Ibuprofen.(or even smoke marijuanna) If it lasts over 5 days with no sign of getting better go see your doctor.
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