GregD said "I don’t know if I would know or recognize if I was depressed" Trust me - you will know! It creeps upon you, but you consider that you don't want to wake up breathing the next day, you will know. I usually recognise it coming on when I hurt the ones I love most.. I get angry with the world. I u sed to fuss at my sweet pug, and when we had to put him to sleep, I nearly died.
Depression doesn't just slam dunk you, but it certainly makes your PD symptoms worse. That and the apathy is how I know that it's time to check my brain's chemical composition. It usually is common in PWP due to the fact that we bombard our brains with L--dopa. Seritonin, etc. But it is a time when I feel like nobody cares - and neither do I.
Peg