Hi there, I'm a new plant parent and growing my first plant ever - a chilli plant. The plant is ~2 months old and has had excellent health so far, but I'm now starting to see some of the plants develop spots along the leaf veins. Some leaves are also curling up, and it doesn't seem like the new leaves are growing as big as the last few ones. The backside of the leaves look like they have swollen veins. I tried looking for the cause on several blogs/websites but wasn't able to quite figure out what's going on. Any advice is really appreciated!