I was given a tens machine via the physio and pain clinic. The gel for pads is not expensive. If they work for pain relief the minor investment even if they are paid for would be worth it. Initially I was 'lent' one to see it it helped. A decent pain management course would give the opportunity to see if they worked or not on a trial basis. If not try asking a friendly physio to lend one, thats what I did. In this way no personal outgoing would be needed. If it does work a little then maybe its worth putting on a Christmas list

. or saving up for one. We could design a christmas stocking for the hypermobile and perhaps it would include a Gym Ball for core stability, lotions and potions for aches and pains, a course of acupuncture and a little pot of ready made collagen.
I do have to be careful with a tens machine some days as over stimulation of my sympathetic nervous system can rebound pain wise, which a Tens Machine can do if I use one when I am not coping with my pain so well and therefore have to be careful about not leaving their use until the pain is unbearable and using them as part of a pain management strategy incorporating pacing, realistic goals and distraction techniques etc. is essential. As with many things each persons experience may be different as well as their presentation of HMS so what suits one may not suit another. Worth a go though if one is prepared to be open minded.