white/yellow spots

Thrips damage, you can see their poo under the leave, the lil black spot.

I think its some windburn, if they are on a windy place. But since lowest leaves are yellowing too, I suspect the main thing is a calcium deficiency. This could be because: PH is out of range, waterlogged soil, too high other nutes. My advice is to let the eath dry out until top is dry for one finger digit (1 inch), spray leaves with a calmag solution for immediate uptake w/o further wetting the soil. If you use normal potting soil, be aware that they usually contain food for up to 6 weeks, after that you should add nutes of choice for growing. Just water only when soil is dry on top, little moist a little deeper.

Hi Bro, 100% bites by badbugs and similar, no aphids or spider mite infestations are visible. Spray nettle macerated or thyme extract for organic treatment but don't expect miracles. Plant will survives without problems.