marks on leaves

I agree it looks like pest problem. Thing Is to me it looks to be a combination of bug damage. The spotting looks that of thrip damage.... check undersides of leaves for small almost worm looking motherfuckers. They like to hide along the viens of the leaves... almost blending into them because they lay right along and up against them. Turn a affected leaf over and breath on it. Your breath will stimulate the thrips and get them moving out of hiding. That's a little tip to find and identify thrips. Your linear track like damage is caused by leaf miners. They lay their eggs inside your leaf and the eggs hatch and the larva have a buffet through your leaf and out. Some kind of pest control methods should be applied immediately to push back the pests. Happy growing and stay lit fam.