I've had a cold for roughly 2 months, started off with a terrible cough. Now I get head and ear aches intermittently, pains in my knees, elbows up to my wrists, my nose has been bleeding (not running) for 1 week constantly, I've been very tired and I've just come off a period lasting 5 days having excruciating pain around the same time each day which is very unusual for me, I was left practically crippled for about 10 minutes, I also have bouts of diarrhoea and have no idea if it's all linked