Worry about possible health aged 22

Hi looking for some advice/ reassurance for the last week I've been experiencing mild discomforts over my body in diffirent places each day that last anywhere from a few minutes to a few hours such as what feels like mild pressure on top of my stomach or a small discomfort on my side and back, the issue is in a diffirent place at different times. The issues aren't effecting my day to day routine or sleep and if anything it's not noticeable at bed, I was doing some heavy lifting the day before it started but due to my anxiety I refuse to belive this is the cause . Any help would be great thanks