Can anyone tell me why my leaves are curling round...

Omg, I wrote this all out, pressed send and GD froze. Cool.... Here we go again! lol. My last response was longer, but I'm going short route this time. I do not believe anything is wrong with your girl. I believe you're correct about the light and I'm certain this has nothing to do with the lamp. It's isolated to such a small area and only affecting a blade or two while the blades around them are completely healthy and normal. If she's anything like the little mutant I've been growing, this can grow out after a couple new node points and she should start to push normal fans. If it doesn't but continues to be isolated like this, I would certainly chalk it up to a plant deformation/mutation. I'm a new grower and have already seen some weird crap mutations like this on my girls, but in the end it proved to be inconsequential. May not be aesthetically pleasing, but it won't hurt the plant, overall, and/or your final yield/quality of your bud👍. As I see this question is 4 days old, you may already have your answer as I'm sure she's probably pushed new node points and a new set of fans. Has it continued or has/is it growing out? Genuinely curious. I await your update, or you can throw me a PM and let me know😮! Cheers and happy grows in the coming days😃👌