heavy vaginal discharge

im getting desparate now and noone can help me. i have a very heavy discharge for last two months. first thing i did was go to gum clinic, they diagnosed chlamydia and gave me first treatment, after two weeks i still had the discharge so got paranoid i had reinfected myself as at time just met new partner (was having discharge before we met and at time just tohught it was hormonal- it is now alot worse)so me and my new partner both were treated again with the one dose and didnt have any sexual contact for over a week. discharge still didnt clear. i went back to gum clinic who were very vague and said no way chlamydia will still be there. they looked at my cervix and said i had thrush from all the antibiotics so gave me oral treatment for this. this was well over a week and a half ago and i still have discharge, my doctors are so hard to get appointment with without even looking at me she just said over phone that its probably nothing... its taking over my life. im embarrassed and feel suicidal. i cant even wear skirts or dresses as the discharge is making it way though thick sanitary towels at least a few times a day. its is *watery *clear *no odour atall in fact my vagina doesnt smell of anything *non sticky just slippery *constant and heavy *no blood in it atall * no pelvic pain or pain during sex *no irregular bleeding * just heavy heavy embarrassing discharge i dont wash over the top in fact i have avoided all soaps down there and dont douche as know this can make symptoms worse. i had a clear smear two yrs ago. im really worried though now as all ive left to rule out now is cervical cancer as negative for bv and ALL stds apart from the original chlamydia result. i am on yasmin contraceptive. i have no obstruction up there!! im begging you to help as this is taking over my life!!!!!!!!! im seriously getting depressed and sit at home crying over this - my normal underwear is replaced by horrid granny knickers padded out so i dont look like ive wet myself. i suppose the only way to describe it is like being constantly sexually aroused thats what it feels like down there. however it couldnt be further from the truth at the mo. the discomfort is unbearable.