My last regular period was november 1st,since then my body has been acting very weird,i get light annoying headaches,my body aches,especially my back and legs,i am very bloated,my nipples tingle,i feel sick but i dont throw up and my uterus looks swollen and i feel discomfort when i press on it. My last period came november 29th and it only lasted four days,the first two days were extreme discomfort and cramping but the blood was light red with brown spots,the last two days were brown and red spotting. My period normally lasts 5 to 6 days. I took two test and it came out negative.