Brown periods for long. Should i worry?

I am a 28-year-old woman, 80 kg, with long-standing irregular periods. I was diagnosed with hypothyroidism (TSH 10.4). In February, my gynecologist prescribed Primolut-N for 3 months and levothyroxine 50 mcg. My periods became regular while taking them but stopped after stopping Primolut-N. I lost 3 kg and my TSH improved to 4.5, but I continued having brown discharge instead of normal periods. Other tests were normal, so Primolut-N was prescribed again along with PCOD granules, and I continue levothyroxine 50 mcg. Since July 18, I have had brown discharge for 15 days, initially with small clots. In September, it returned with larger clots and continued for about 3 weeks . The flow is now very light, but I still see blood when wiping. I have no pain or other symptoms. I am currently outside India and cannot see my gynecologist. What could be causing this,and should i worry? I am having a boiler in my underarm for long time too its coming and going sometime with pus but always sore pain