Firstly, congratulations for having the good sense to resume riding again. :yes
May as well enjoy life while we can!
The suspension units on motorcycles are funny things. They can be wildly expensive for no good reason, and they can fail at some very unexpected times. Clearly, if yours is pukking oil, its time to start shopping. If not, the next move is anything but clear. :dunno The OEM units on virtually all street motorcycles are not known for their high quality, so it would not surprise me if at 22K miles yours is ready for retirement. But if you don't have a sense you're on a pogo stick when your ride over rough pavement, maybe you have some time left to save for an upgraded unit. If you already have an aftermarket unit on the bike, you may be able to save some $ by having it rebuilt. If it is the OEM unit that is obviously clapped out, it's more likely ready for the dumpster.