It has happened to me in the past, same spots and same curly mutation! I thought about TMV too but I have read a lot about it and it is very difficult to diagnose and actually there are very few tests that were positive for TMV in cannabis plants. I remember some time ago I read about it that the spots in the leaves are homogeneous over the whole leaf and don't stop in the central vein or only on certain parts of the leaf, it could be variegation or just genetics doing this tricks that could only bother the eye. My plants only showed these spots on a few leaves and then that was it, I totally cared and forgot about it and nothing happened. In theory it should be infectious TVM so you should see it in all the other plants around it but if they are of the same genetics it is hard to tell if it is just a genetic trait or actually a virus
In any case do you smoke tobacco?