Hey sorry thread hopping.
In the UK, the generally don't care about insulin resitence regarding pcos. They wont run tests and they wont treat it unless your found to be diabetic, in which case they will offer metformin. You might get a sympathetic GP who will prescribe it if you aren't classed as diabetic but generally you neednto get a private prescription for it.
They will teat you for pcos if they or you suspect you have it. Usualy cycle day 3 and 21 bloods looking for LH, FSH and ovulation is the first thing they will do. They'll test partner with a SA too and then if its found that either you have a problem like not ovualting/ something wrong with SA they'll refer you to a fertility consultant.
They'll do tests, bloods, HSG etc, and will then offer you treatment if you don't already have a child, and fall into their criteria, BMI etc. Usually ovulation induction and IVF. Obviously this all varies from area to area xxx