Welcome to NT
Just tingling. Well, that means something, ok?
You might want to keep a journal of your daily acticvities and pain level, showing where the pain is and time it starts and what eases it off. Include meds, foods, vitamins and anything you are doing, activity-wise.
Like, do you have a high truck you have to stretch to step up in?
Sleep???? mattress? number of hours you get? day/night sleeping? bad bed fellow? snoring? apnea?
Are you walking on concrete or stairs? Work, school, shopping?
Smoker? Yeah. smoking is bad for humans! ! !
Point being, if there's not a medical reason, then I would look at my activities a little bit.
I do hope you get answers, because it is so healing to know what it is and what you can or can't do about it. It makes a lot of difference in how you recover.
Think of all that testing as a baseline for your future medical history. It is great news that all those tests are normal.
Keep asking questions...