Cheese Auto x1 / Mimosa Cake Auto x1

Everything is fine, in this stage leaves are looking like that, sometimes like abird who spreads the wings... Plant looks happy and healthy keep that track

She will heal . Next time wait until they are a little bigger until you bend the main stem.

My guess would be Cal Mag deficiency...

burnt tips can be a indicator of so many things though my guess a very very slight under feed.

I would also make sure you are giving the right PH water. Everyone one made good points but they also point to a slight lockout. Just thought I'd say...Good luck and happy growing

Imo, I'd use a little citric acid/ascorbic acid/tartaric acid and perhaps some sugars. The citric acid can aid nutrient uptake (particularly phosphorus), ascorbic acid (vitamin c) is also beneficial, tartaric acid is essentially a potassium source and sugars are well..sugars. Lemon, lime, other sort of acidic fruit juices could be used too. I probably wouldn't use vinegar much (maybe balsamic vinegar or apple cider vinegar).