Last menstrual period was December 2014, experienced clotting and bleeding for a couple days in late February 2016, went to get checked, was given antibiotic and also told that my Ph level was most likely off. No issues until yesterday, HEAVY bleeding/clotting every 10 minutes in bathroom, last night abdominal bloat and pain, this morning felt like got hit in stomach, tender, used tampon (for heavy flow) went through and into underwear within 2 hours. Ate salad about 30 minutes ago and getting bloat and uncomfortable feeling in abdomen, when I lay down it fells slightly better...what is the cause, do I have a vaginal infection, or what?