Well, nowadays I just try to be aware in the moment and not focus on meaning, the future, etc unless I need too. Success varies.
If I'm too hyper-focused on something (like coding) for too long though sometimes I'll still get a similar feeling. Haven't found anything to do in that case but wait it out.
I mix several things at all times to ensure the hyper-focus doesn't set in.
At the moment I code, cycle, read sci-fi, takes photos, and am just about to buy an electric piano to add something else (as the coding was dominating again).
If I'm too hyper-focused on something (like coding) for too long though sometimes I'll still get a similar feeling. Haven't found anything to do in that case but wait it out.