Sometimes you get things all at once and whilst four oh isn't old, it's reaching the point when you have to be pro-active in terms of getting rid of injuries, they don't just go anymore. Currently I've got tennis elbow in both elbows, how or why I don't know but just toughing it out has not worked for the last 6 months and I'll probably have to give up and get a cortisone injection.
I'm reminded that I'm not as young, everytime I do sports with the kids. I can happily be in my 'I'm quite fit and active' bubble up until they outskill me on the mtn bike, outski me, hold a non breathless conversation whilst out running and then outsprint me at the end and dribble past me playing football (not all at once I may add). It's an arse, I can tell you.
Mentally you have to make a small adjustment each decade past 30 I reckon. You can still do the same things, you just have to realize there might be a few more limitations.
Look after yourself and plan a proper recovery, no toughing it out.
