Could I have been abused?

When I was 7 or so, I woke up with a red mark in my pelvic area, on the left side between my torso and thigh. I couldn't walk, and just so happened to have a doctors appointment that day. I was desperate to show I was fine because I didn't want to go to the doctor (typical kid) I was holding the wall and still limping.

The doctors drew my blood, but I just realized that it's odd they never did ant testing for assault. They said it was caused by me not eating enough yogurt (a prebiotic deficiency maybe? My mom just told me I need more yogurt) but my mom didn't seem convinced either. This is a medical mystery that I wonder about pretty often, and I can never think what it could be. I'm doing classes for childcare work and we're told warning signs... it kinda set off a red light for me for SA. When I look this stuff up, I can't find anything online about it as a medical explanation.

Could I have been abused?
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