Not pregnant but been trying for 18 months - help?

Hi, My partner and I have had trouble concieving for nearly 18 months. His sperm count is very high (255m, of which 160m were viable). I haven\'t had a period since october. All my hormone levels have come back as \'normal\' but I dont htink they are. I have recently put on about a stone in 8 weeks, I have acne, hair loss, horrible acid reflux, joint pain and am constantly tired. These symptoms have been on and off for the last 7, 8 or 9 months. I\'m not pregnant. I was on the birth control pill for 3 years, came off 18 months ago to start trying and have only had 3 periods since, one january last year, one august and one october. nothing yet this year. So yeah, we aren\'t pregnant and I was wondering if you could give me a vage diagnosis of the reason for my absent periods, the dr said it isn\'t PCOS but has no idea what it is. (basically useless!) Thank-you