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Have you had anyone take a look at your running and sitting technique/posture?
This may be where the problem lies.
It can take some time for your muscles/tissue to hold a change as it is breaking an old habit/positioning and learning another.
How long the situation has occurring can factor in too.
Keep chipping away at it.
How long are you spending at a time?
You may need longer on the area.
You can do it as many times a day as you want.
If the area is tender on a following day using another technique can help.
Yes you can smash 10x per day if you want to.
If you are getting nerve pulses stop doing it. Something is not right.