For some of us lifting weights can set all manner of things off, even just visiting a gym likewise, often because of the sensory overload.

And when in time you think all is back to normal it can hit when unexpected. Trying to find why; sometimes there appears to be a reason, sometimes not but fatigue, noise, lights, stimulation can be major players.

Loved the words thrown at me when suddenly I unexpectantly deteriorated big time on a family outing, "You learn how to cope, not manage it because you sometimes never know when it's coming even when you think you know it all". This from someone 20 years post accident.