im 17 in good health although have had abit of trouble breathing last month but nothing was found to be wrong with me, so good health now but i have been getting a really bad pain in my left breast out of the blue proberbly around 2 or 3 times a week, it lasts a long time before going proberbly around half an hour, i dont understand what it is because i dont have tender breasts and i never have had any type of breast pains at all. i have checked for lumps but havent found anything. I have changed my pill a few months ago which will have changed my hormone levels but would that cause pains in my breast? i never had problems with my breasts on the first type of pill i took, any ideas on what it could be or if anyone thinks i should get it checked out? should i worry?