For the past several months (give or take 4 or 5), i have had this sick feeling. My eyes have felt bloodshot almost constantly, and as if they are swollen and it hurts to keep them open sometimes. Ive felt horribly constipated as well, which doesnt help. Chest and head pains have been fading in and out as well... my temperature keeps shooting up and down from hot to cold, almost every other day. Overall i just feel miserable because of it, and im only 17. My throat has also felt slightly swollen from time to time and i constantly feel weak and tired every day, even after 9 hours of sleep... please help me figure out what this is, thank you