Well I have sciatic and I also have RLS where I have these pains and feelings that something is walking over my skin, the need to keep moving my legs. But like you I am suffering from leg pain . Dose your pain only happen in the evenings and over night ? I wear support tights this really helps with the pain during the day time, but as soon as they are off the pain is there again. Have you tried wearing different shoes to gym? I know this is not the answer you may be looking for but I hope this helps.
Hope you get to the bottom of it as the not knowing is the worst thing,
Happy new year
Diagnosed with ‘mild’ PD in May I have experienced increased balance and mobility problems but have few of the other symptoms of PD. I suffer a ‘sciatic’ type pain in my left leg on waking which is not sciatica and which fades down my leg and virtually disappears after a couple of hours. However despite going to the gym for manaed exercise twice a week and being generally quite active the balance and mobility problem gently gets worse it seems.
Has anyone experiencedi similar symptoms