i guess i just woke up in a funk this morning...
does this mean the same like "I woke up not from right side"?

Question

Answer

It means he woke up in a depressed mood.

Answer

Hello Danyel:

Indeed, it does mean that someone  did not "get up on the right side of the bed".

.
    If  you did wake up in a funk,  it may help to play some pleasant music until your mood lifts.

Good subject for discussion, by the way.---Warm Regards, Bruce