Is there a chance that gabapentin will stop working for my trigem neuralgia.it takes half the pain away but am scared will stop working as i've heard.

Trigeminal neuralgia: There is a chance. I would try and rephrase your question in terms of how that matters and what could be done about this: the dose of Gabapentin could be increased until you run into side effects that would make further dose increases not recommended. There is also the option of adding other medications. Assuming you suffer from typical trigeminal neuralgia - surgical options could be considered.

Possibly: Sometimes, the symptoms go away on their own, and sometimes, Gabapentin and other drugs stop working. If you have had pain for more than a year, and multiple medicines have failed, or if you can not tolerate the medication side effects, surgery is appropriate. I do a "keyhole microvascular decompression" which allows most of my patinets to go home the day after surgery, with 90+% cure rate.

More info is needed!: Wait don't get distracted you need to know; most complex pain syndromes that's not a tumor can not be always be successfully treated with a pill or a surgeons’ scalpel. But can be treated with a “therapy!” myofascial dysfunction which is a primary generator of most pain and can be txed with massage, chiro adjustments, hands-on manipulations, acupuncture, trigger point injections. See my notes.