Worried aboit artery’s in neck - #10319

e as an 11 year old is stressed. She used to fling her head forward voluntarily and forcefully with her neck muscles (no outside force)and stop it abruptly. She did this lots of times a day(about 40 times a day) for about 2 months then stopped and then a year later did it again for 1 month (the motion took about .3 seconds total. She started her head up straight and by the time she finished and jerked her head to stop it was at 60 degrees downward ) . she would get a sore neck and headache the next day sometimes and then it would go away a few days later… it has now been about 4 years since then and she has not had any obvious symptoms or changes… is there reason to be concerned that this could lead to nonconcussive effects, I’m afraid this also ciuld when caused artery damage and anuerysm in neck