What going on with my tomato plant

[Homegrown2212]

Hello,
I have a Roma tomato plant growing in a pot and the leaves have a weird downward curl and the stem in the middle of the leaf is bigger then normal.

 

[zigs]

Welcome to the forum

Doesn't look like anything to worry about, they do alsorts with their leaves when they get temperature variation.

 

[headfullofbees]

I agree, your plant looks healthy.