TMV?

I dont think it is TMV. There would be isolated patches from the beginning as far as I know. Also think twice if you want to flush here. It could be do more harm then good. 😰

Not TMV, not uniform enough.

Really hard to tell what caused this deficiency. Easiest way to fix it is by flushing the soil with 2 times the pot volume in water with the right pH and EC. Let the soil dry for 2-3 days and after this you can continue watering like you are used to. You are almost done so this one time flush should help till harvest.

potassium deficient? ph swings can cause different rates of growth that result in a curved leaf, too. eliminate possibilities. i've read it's not even certain tmv can affect pot plants? do you smoke? that may increase risk if you handle plants afterward, if it is possible.

Definitely not. Most likely just a mutation. Hope this helps