The GUM doctor was probably circed at birth, so does not know any different. Secondly he will probably see a large number of patients with sexual diseases which through poor hygiene or sleeping around led him to consider the safest penis is one with no foreskin.No crevices, folds to hangs on to stuff or cause irritation..
Research has blown a hole in the brigade that preaches the circumcised are best. Hell, it was suggested that if the population of Africa was all circumcised AIDs & HIV would not be a problem This lead to the circumcised thinking they could just go off and have it off! Without any danger. The escalation in infested cases has sadly shown this to be a load of bullshit.
Stretching can work, Glansie of Australia sell a device, though I'm concerned at the small area of skin to which the stretching force is applied. OK, for children not for an adult. But that's my viewpoint.
Foreskin Restoration Massage Oil for maximum results sells an oil they claim helps stretch the skin. The cortisones mentioned in previous posts, are sometimes difficult to get from doctors. Not because of the end use, but due to the potential side effects. Thinning the skin can cause damage. As for surgery, a previous poster mentioned a procedure, this is a 'Z' shaped cut which can relieve the tension. As for full circumcising, obviously you can go for this adventure. For an adult, it painful over an extended period, and not always pretty even after the wound has healed. Best use a skilled plastic surgeon, more expensive but the result is diifference between an amateur spraying his car and a professional body shop. One can take the view 'We'll few people will see your derobed penis.' Perhaps not now, but once done you'll be stuck with it, that is unless you have a remodelling job done later.
The best approach is stretch it mate. It will take a lot of time. Then if you eventuaslly decide to go for a cut -Then OK - But jumping in for a cut immediately is a hell of a decision.
All the above ideas will be governed by your health conditions though, as with any part of the body, each of your units are different than the next chap. One only needs to view the displays of penises, boobs etc. to see the variety.
SamWoe - I've overcome my own problem with stretching + aloe vera gel. (test any cream, drug or skin medication on a small area first -to ensure you have no allergy to the product) Cleared a phimotic ring too!