We don't know -- we're not experts. You've been referred to experts. Go see them.
Is there any Dangerous due to this type of pains and is it pain temperory or permenant.
You don't say if you do exercise regularly!
google the following exercises that can be done at home.
hamstrings, adductor, abductor, quadriceps, glutes and core
muscles. It's very important to do these exercises no more than 2x per week and rest at least 48 hours before doing them again. Don't go crazy and do lots of reps as you start out.
do 8-10 reps per each muscle group.
Buy a tennis ball and do the following!
It can be used to help from piriformis syndrome (sciatica). The ball is used as a source of pressure to treat trigger points in your piriformis muscle, the goal of reducing the pain of your muscle, and helping blood flow to the area and relieving the irritation on your sciatic nerve. Sit on the floor and place a tennis ball under your gluteal muscles on the side of your body that you're having pain. Slowly shift your weight onto the ball and note any areas of increased pain; these are the locations of your trigger points. Use a moderate amount of force to compress each painful spot for 15 to 20 seconds before you move to the next. You should be no more than 5 minutes per treatment.
Get the OK from your Dr.
Could just be a strain that's proving hard to fix. Hard to see what an x-ray would show, and MRI would show more, and someone who knows how to test muscles might even do better. It could be the periformis, a core muscle, especially if you have sciatica as well. This doesn't usually show on either an x-ray or an MRI. It's very hard for your average PT to fix something if they don't know what's wrong.