I can only answer with ref to the homeopathy. You can contact the Faculty of Homeopaths- their members are also medically trained doctors, I believe. However, you may find it more effective to get a medical diagnosis from your GP and then visit a Registered Homeopath- who may not also be a doctor. This is because their training in homeopathy can sometimes be more extensive than that of a doctor's, their consultations may be in more depth and they may be cheaper! You would need to contact the Society of Homeopaths and then perhaps ring a few people for comparisons.
You will be lucky to receive any of that on the NHS! You can ask your GP but I doubt they will fund your treatment, unfortunately. HTH Hom

Sorry- I have just read your other details! Yes you can use homeopathy alongside any other medicines and neither will affect each other. It can be very deep acting and if your instinct is that this is the way to go, I should pay attention to it! You may find that an unmedical homeopath will be more responsive to your situation but of course I am generalising.......
If you need further details, you can contact me off board. Hom