How ever, I am pretty sure I will be better off just not training today as I don't feel fit enough anymore.. this actually might pass faster if I sit out a few days.
No gains will be lost, that would take weeks.
Pushing through and over exhausting myself and sweating etc. Would likely just cause more downtime.
Be smart, don't stress to much - a little pause is not a full stop and the fact that you might struggle giving yourself a pass on a pause like this just shows you are committed, so it is a win
Of course, not every little thing should be an excuse, but in this case I am certain it is the better decision.
Feel free to join in, sharing your struggle might also help to accept it and to keep you accountable not to abuse such a pause and keeping it real.