Mommies, before I got pregnant I had this sharp pain in my left side (NEVER in my right side) that…

Mommies, before I got pregnant I had this sharp pain in my left side (NEVER in my right side) that comes and goes randomly and has been happening for years, the whole time I was pregnant it went away completely, but now that she's here its come back and I mentioned it to my doctor yesterday she didn't seem worried about it but it's painful :(