It’s annoying not feeling productive, when having a cold it really reduces the productivity.

Although there are certain ways around this, for me I just keep these things in mind:

-I cannot allow myself to not complete tasks because of a minor illness otherwise I will spiral down into laziness and never get anything done.

-Don’t think too much of it, just do it.

-Help yourself get in the mood for it, listen to music or wear clothes that make you feel productive (present yourself to your personal preferences of focusing).

-Your willpower is stronger than this.