18 weeks 5 days and spotting

I had a subchorionic hemorrhage at 11 weeks with red spotting then again at 13 weeks wzs bleeding again and found it resolved but my placenta was partially covering my cervix. Now km 18 weeks 5 days and havent had bleeding since until today. Yesterday I was feeling pretty crappy with some diarrhea and alot of pressure in my uterus and alot of braxton hicks. Not painful exactly but pretty uncomfortable. So this morning I went to the bathroom and there was alot of brownish red blood on the toilet paper. Im still having quite a bit of braxton hicks. But aevice nurse thinks I have stomach bug. Which I DONT. Im not getting 4 braxton hicks every hour but Sometimes. I am getting 3 and they last like 15 minutes. Anyone else dealing with this? Im nervous. Im really stressed out from my boyfriend and everytime we have a big fight i bleed :-( and he says its my fault and doesnt seem to care. So the stress is not helping. Im pretty uncomfortable and feel completely alone. I need advice :-(