Difficulty identifying leaf problem - maybe it's insects?

here's a pic of thirp damage... growdiaries.com/diaries/109886-grow-journal-by-nobodysbuds it looks different. You are looking at 2 of the oldest nodes on plant. 3-fingerd and single serrated blade leaves... good chance they are just being shed, if blocked from light. The plant will suck them dry and shed them if they are too dark or too much foliage otherwise relative environmennt provided. do the black specs brush off? that would be a sign of some bug's feces. If it is brushing along soil occasionally, that could also be a cause of the dark bits as well as symptoms seen in leaf. looks like it's touching ground and twisting a bit due to LST stress, which will go away.. if touching ground, bend or remove the leaf. i see a leaf bent down between plant and edge of pot.. flip that bad boy up to rest on top of pot rim... same with any others touching or nearly touching soil. if the plant deems a leaf useless, it iwll shed it.. that is dependent on the light it is receiving (plant's react in a compartmentalized/local way.. there is no central nervous system)... if the cells in area don't get "something(s)" it'll cause a response to shed the leaf or whatever has to be done. e.g. you can darken 1 limb on a plant 10+ hours per day and it will go into bloom while rest stays in vege (do not do this, as it could have soem adverse impacts, but is most definitely possible to do.)