interesting... and ya they have been going through mad stress. I live in NE haven't seen a full day of sunlight in about a month. Also, I transplanted during this time, so I think they also had a little bit of shock from that. Also, it's been colder then would be liked. Granted they are a mostly indica strain, the weather is still beating them down. Good news though, it should be clearing up soon and today there has been some sunlight. It's weird though huh? Like I'm pretty sure it's not a deficiency, and if it is then it's multiple ones. The thing is I transplanted into fresh soil, so they should have plenty of nutrients still at this point.
Also, my plants too seem to be growing just fine (a little slow but that's mostly due to poor weather conditions IMO). GL on your grows and I am glad to hear I'm not the only one experiencing this strange phenomenon.
Smoke up and stay happy everyone