Obviously it is impossible to give specifics in a written exchange. For all we know it well could be a adductor specific problem.

I would challenge that your flexibility is unlikely to be very good. There will be glaring deficits as you noted already with "tight hamstrings & iliopsoas".

For example can you assume a full saddle pose, full pidgeon pose, full dragon pose, pancake pose etc etc. Feel free to google for reference.

If your flexibility is very good however the issue will be load tolerance.

You need to find a clued on therapist that isn't going to just stick some acupuncture needles on or tape or any other passive therapy.

Ask around for recommendations in your area. It may require trying many.

Hope it helps in some way