What Can Cause Sore Breast And Dry Mouth In Non Pregnancy Case?

i had a period on the 7th of april. and i never saw another until 25th june(11 weeks 2 days) it was very light on the 1st day and very heavy with clots on the 2nd and 3rd day. within the period before the 25th of june i had sore breast, felt extremely tired, nasal congestion, headaches and constipation. i also did a pregnancy test and an ultrasound on the 3rd of may but all came out negative. i have stopped bleeding but i still have sore and throbbing breast, dry mouth and i feel uncomfortable when i lie on my tommy, i have also gained a lot of weight. please what could be wrong with me