Is there a problem with my plant?

Hi this plant is my oldest one and ive has no issues with it but recently i sprayed it with some pesticide (The pesticide was for tomatoes etc) to kill the thirps or mites it looked like i had. but i guess it wasnt the right pesticide and killed a couple leaves and put some marks here and there, AND maybe put some stress on the plant. I really dont know but anyone that knows their shit about this can anyone give me a hand, or even say its growing normally?

Indoor closet grow, CFL lighting.

Dont see much wrong there

Did you spray the pesticide with your lights on? If so probly just burnt a few spots where a water drop was....the water drops can act like a magnifying glass in the sun.. hence the little spots....if lower leaves are yellowing and dying it could be you need a little more nitrogen.

Thanks guys, Guess must of been over thinking