A amy New member Apr 8, 2011 #1 when i sit down in class i have to pop my back a few times 10 mins and also if i sit down too long my lower back ache is this normal ? if i don't crack or pop it i get aches really bad
when i sit down in class i have to pop my back a few times 10 mins and also if i sit down too long my lower back ache is this normal ? if i don't crack or pop it i get aches really bad
