15 weeks and moving but scared high risk mommy's help?

I've felt my little one move since 13 weeks the first time freaked me out at first because it felt like a finger running up the inside of my belly and then I realized it was my little one moving. Now it freaks me out if I don't feel movement at least every two hours. The kicks are getting stronger and more noticeable while I'm up and moving. I love feeling my little one move and being a high risk pregnancy I stress when I don't feel anything. I don't have cramping or anything else but I'm still scared I'll lose this little one and since I lost my last one at eight weeks and never felt it move I know if I lose this one after feeling all their little movements it will crush me even more. Any other mommy who can relate to this? How do you calm yourselves and stop worrying about it?