What Could Prolonged Menstrual Flow, Broken Facial Capillaries And Body Rash Indicate?

hi im only 15 i weigh about 53 kgs im not as far as i know im not illergic to anything. i just started my period again not last thursday but the thursday before that and i still have it. i get tired easily and tonight i noticed i have broken blood capaliarias under my chin. last monday i went on a camp these bumps appeard all over my body i dont know what from as i used insect replant and midgie spray but i didnt get these lumps until 2 days later so i dont think it was caused from the insects they are very itchy tho. and also my body always feels warm/ hot. is there something wrong with me ?