JenniferEccles I was playing a tennis match on an old fashioned hard court. I served and pushed off to run to the net and there was a noise like a pistol crack which stopped play on the next court. I thought I'd been shot just above the heel. The bruising a couple of days later went from my foot to my knee. It's common injury with tennis and squash player but you can do it just taking a miss step off a curb. It was easily diagnosed as there are a number of physical tests which can check for injury and I didn't need a scan, they didn't exist in the late 80's!
It got sewn together and I went through a long process of rehab and eventually was able to play tennis again and run 10K without issue but I have never got the calf muscle back and have one leg thinner than the other.
Aged nearly 60, I put a hole in the scar tissue getting on a rather frisky horse that decided to move. It was a very cold day and I think that is what contributed to it. Again I didn't have a scan, a physical examination was enough. I have a hole in the tendon that I can put my finger in! It was painful but heel lifts and taping the heel up enabled me to do most things I wanted to do and did a lot of physiotherapy via my GP which helped enormously.
tbh it still gives me pain and I just treat it using RICE, ie rest, ice, compression and elevation, it's annoying but there is no quick fix for this injury. If I were in OP's situation I would make an appointment with a good physio and get advice on how best to treat the injury. Most tendon injuries take much longer than broken bones to heal and patience is key. If my achilles is painful, I rest it and let it settle, it's a massive tendon that takes a huge load and if it goes again completely, I won't be able to walk and mobility is very important to me.