Anyone els have this pain?

Monica • One happy mamma! 😍 💙👶🏼
So yesterday I was fine I got rest the last two days and drank a bunch of water but today I woke up for work with a full bladder. I'm surprised I didn't explode. After the restroom I felt tender, well on my way to work I started getting what felt like period cramps. I work in a kitchen so I'm doing my thing hoping it passes but it's constant period cramps with sharp pains. I called my dr they told me to go home and rest an if it's the same in a few hours go to hospital. Once I got home it felt worse about 2 hours later it started to fade so I took a nap. Now it comes back when I'm walking but not nearly as bad. I'm taking tmrw off work and have an ultrasound scheduled since last month so not sure if I should still go to the hospital or not. But iv been feeling my little man moving around which makes me feel better. Has anyone els felt this kind of pain? Also I'm 22 weeks and 2 days and iv had the best pregnancy so I'm hoping it didn't catch up to me now.