Hey guys , I’m new to growing...everything was going well for a while until I started noticing the bottom leaves turning brownish/dark green and they are working their way up the plant. The top of the plant is doing ok but the leaves twist every once and a while. Anybody know what this is?...while other threads spoke about the same problem I have yet to see pictures of the same problem I’m having...The nods where the leaves are Having the issue are still growing smaller branches so it’s not that the plant is getting rid of the unnecessary leaves...please help