Help!! I’m 22 weeks Monday!

Last night I got up to go take a shower and I noticed a pain to the left of my belly button and around my left side to back. I thought it was round ligament pain but when I was lying down it still hurt when I would move a certain way. It feels just like I would describe a pulled muscle. It hurts when I breathe (stomach expands) and hurts when I bend over or move a certain way. I have had a similar pain on and off during this pregnancy but it hasn’t been constant all night long. Like it would last a couple of hours then go away. This has lasted almost 12 hours. Like I said it only hurts when I move a certain way. The pain isn’t unbearable by no means but it scares me because it’s still there whenever I move. I called a pregnancy hotline and the lady basically said if your pain is at a 10 then you need to go to the ER but if it’s 6 or below it can wait until your next appointment. Ever since I’ve gotten pregnant I’ve sneezed like 5,000 times a day. I’m thinking I could have pulled something sneezing so much and it could also be my stomach stretching because it literally feels like pulling/stretching feeling. I didn’t feel baby kicking this morning so I checked with monitor and found her heart beat and then she started kicking away. So I know she’s okay at least. I’m going to try and take some Tylenol to see if it helps at all. Anyone else had this issue while pregnant?? I’m already over weight so I’m wondering if that’s why I’m having more pains....