Spotting after sex also got thrush externally

Long story short. I have previously had brown spotting after sex a couple of days before my period. Had termination June 2015 & coil fitted. Due to my odd shaped cervix they put me for tests and colposcopy and all clear end of 2015. I have had my smear 12 weeks ago plus in February I had swabs. All were normal. 2 weeks ago when constipated (due to codeine for back pain) & straining (a lot) I bless from my vagina. Not a lot but enough to see it. Had sex the next morning and a bit of blood in the diaphragm. Had sex 6 days later and pink tinged discharge in it. Then last night after sex blood times again. Due to the diaphragm gel it probably looks worse than it is. I had a large polyp in 2012 when I had my son. But when I had my recent smear the nurse asked about it and implied it was still there but it was removed. Is it another one? Could it cause this? I am such a worrier. I've got a nurses appointment but not for over a week. I suffer with anxiety anyway and I'm trying to not worry. I'm 40 in 2 months.