Hope you get in sooner than that and before the warm weather arrives and its something easily treatable. Have you tried calling a few private gynos and see if their gap is something you could afford?

My mum was incorrectly diagnosed with lichen sclerosis due to itching, irritation and fragile skin, the problem ended up being a chronic low estrogen level which has resolved using topical estrogen creams, she was peri menopausal at the time though so may not be your problem.