white/yellow streaks on leafs

So of course I'm a first time grower... nevertheless noticed some white/yellow streaks pop up in my plant tops leaf... aged at around 3 weeks now. I had left town(10 days) and had someone watch while I was gone. Plants were dried when I got back with no full watering and only light spraying while I was gone... transplanted the plants once I got back and gave full watering... tried to flush a little in transplant but wondering if the white/yellow streaks are something I should be concerned a with or not, and if so what route I should take... any input will be helpful and if u would like more information just ask. pictures of streaks attached...

Yeah I know one might think in the transplant. However the streaks were present once I got back from my trip so I'm saying they were there before transplant. Obviously still present after transplant and I guess could be something with the nutes since they had no solid watering and only light spraying while I was gone. Just being a little cautious first grow and all hopefully they start perking back up and bright thanks for the info