It could be something that is easily fixed. I had vague leg pains around the front of my thighs that were horrible. I went to a great pain management doctor at Ucsd and they were doing RFA/RFI radio frequency ablations it was an easy outpatient Procedure where they put a needle in my facet joint and heat it up and knock out the nerve pain. I had to have it twice in some locations and the heat method worked better than the pulse method. I empathize if that’s what your problem is because it was a weird feeling to have the as you describe it-the vague pain on the front of your leg and yes, nothing absolutely nothing worked to relieve it except getting at the source which was in the spine the facet joints actually! I hope this information helps and I hope it’s the cause and a lot of places like Kaiser don’t offer it. I got mine at a teaching hospital Ucsd pain management doctors know about ablation but they have to buy a special needle. That’s a couple thousand dollars to do the injections so they don’t all do it. Please don’t give up and I hope you find someone who will try this for you in my case it was fairly permanent on some ofmy facet joints. 15 or 20 years later, some of the pains came back in some places so we just did the ablation again. It’s a non-invasive easy do.