Sore belly 26 weeks

My abdomen is achy in general. I went to sit up from the floor today and it hurt my stomach, sharp muscle pains that went away fairly quick but were surprising. Sometimes just rolling over in bed hurts. When I go for walks, my belly feels stretched and tight.... I used to love walking but now with nerve pain and my tummy troubles I have to push to do half a mile.

I've had anatomy scan and my last prenatal was a couple days ago, everything looks good. I'm just feeling down because my stomach muscles are so touchy. Not sure if Braxton hicks, but sometimes at night I wake up and they feel sore, it just started recently. Ugh.... Anyone else? And I don't want to freak out and call my midwife if this is just part of pregnancy. But I see all these posts of women being super active and I'm here just wanting to lay down and rest my tummy and my poor, aching leg (I have meralgia paresthetica too). Trying not to freak out, I guess.