Should I worry about this? (picz)

Hey
The first two pictures are of one of my plants lower leaves (far away and closeup). The leaf is yellowing and shriveling up. Is this normal or should i take action?

The last two pictures are of my other plants leaf where i see what almost looks like a small burn hole. I have no idea what this is..

Thanks for tha help...peas

Sometimes when you water, the lower leaves are sometimes drooping and get in the water / soil then the light bakes that into the leaf and it gets fried everyplace that was wet. Or you may have splashed some water on it.

Thats sounds like the strangest thing i have ever heard
Although i have been doing a lot of misting to keep away
any mites, they are looking and smelling pretty nice