well... there's a whole heap of 'treatments' that can help with the various hms probs... but there's nothing that can 'cure' it, make all probs just disappear... we wish...
and if your pain has gone chronic and is poss due to pain signaling system going haywire, then I'm afraid the rude pain doc is right "you'll have to learn to live with it"... there's no pain meds/no anything that will make it go away completely... but there are indeed loads of things, many that you yourself can do, that can lessen pain, make managing the pain/and hms in general easier/better and can get you back to leading a more normalish life.
have a good nosey around this site, the pain management section/alternative therapies/physiotherapy/orthotics/acupuncture/relaxation techniques/core stability etc; search for "pacing" (or google "pacing for ME"- that should find you a good pdf leaflet- pacing is also used for chronic pain and taught on 'chronic pain management courses'- which is one thing you might find helpful)
re physio- again read through info on here for things to look out for- there's also a good downloadable leaflet re physiotherapy on this site in the "shop" (access from main site), which it might be an idea to take to the physio with you-
if you wonna go the 'whole hog', buy or get your library to buy (it is expensive) the book " hypermobility syndrome-recognition and management for physiotherapists" by Rodney Grahame (yep prof g) and rosemary kerr and take that to the physio
as yep if physios arent familiar with hms... that can cause probs...and yep pity enough it is often down to us to 'educate' med bods, provide them with info.... and yep physio and exercise is a v important treatment for us bendies ...
re "One in particular told me my stomach muscles were useless or words to that affect in other words i am a fat moaning hypochondriac !!!" ... he/she might indeed just have meant what they said... cause yep many of us, also v skinny ones, do have 'useless' muscles (can be anywhere) ... and core stability (good core muscles), which he might have referred to calling it 'stomach muscles' are indeed v important and can make a difference overall.
also maybe ask the physio to give you some advice on good lifting techniques (and again core muscles are important in good lifting)- maybe they could even watch you how you lift, and be able to give you some helpful pointers
and.. it sounds like your gp is on the right track meds wise- one suggestion... he could maybe think about switching the imipramine to amitriptylene (whole thread on this on here) in a lower dose than is used for depression- for some peops this really helps with pain and sleep probs, but it can make you put on weight, though that seems to happen more likely when in depr dosage- check the thread