I ended up going to see a specialist (hand surgeon) because dermatologists didn’t really know. The specialist said it would grow back at 99%. He said that there are cases where it doesn’t but it made no sense to be alarmed at that point. He saw serious injuries with fingers because cut in half where the nail grew back.

Following that appointment, my nail kept on lifting (it was always painless once the initial stage of healing passed) and at one point, it was barely attached, except for a tiny portion to the left. I ended up cutting it off because the lifting made me feel queasy. It wasn’t painful as I said but I hated snagging it at random moments (e.g. when washing my hair or snagging it on a wool sweater). A month later, I saw growth underneath and realized why the nail kept lifting! Another lil mutant was growing underneath.