Check on how worn out your current skate shoes are, or if you're used to shoe models that offer no impact support (it doesn't matter the brand). I used to skate a lot of thin, flimsy Vans and Adidas back in the mid 2010's with little to zero cushioning and gradually developed bursitis in both feet I believe due to that (sometimes it's not the tendon itself that's affected but the region that surrounds it); for me it manifested as lingering pain, like a localized, hardcore version of post-session soreness that would flare up and start stinging for a couple of days after every session just lifting my ankle while trying to walk, before slowly going back to timid but persistent again. At one point I remember experimenting with skating in Sk8 Hi's for a minute to see if that would fix my issue but no, in fact those gave me actual tendinitis and worsened my condition in the end.
For the most part my problem gradually disappeared over the course of a few weeks after having had it for over a year, perhaps twice that. Could be due to no longer skating shit shoes for a while, or to monitoring their expiry date a bit more closely, or to adapting my skating style (as far as I'm concerned, that time period matches with an era where I moved and so completely changed the surfaces and textures I was used to pushing on, and also where I tightened my trucks back up a tiny bit, reducing the flexes on my tendons). Tendinitis/bursitis may mean you overtrained once or they may also mean something is abusing your foot long term, so while appeasing it is of course important you should also try and think of possible little factors that may be fueling your condition without you realizing.