Pictures will help us help you, also please tell us your location and if these trees are in the ground or containers, and any thing else you can think of, like how much and how often you water, any fertilizing done, brand of fert and when it was done, etc. Also, what specifically is your question.

We live in Gulfport MS(coastal)

first, You have Citrus leaf miners. They leave those distinctive squiggles. All about leaf miners. You kill it with feed-through pesticide formulated for fruit trees.

Ants may signal that you have aphids. You can use horticultural soap or neem oil to kill them (as well as other common citrus pests like scale), wet every surface of the plant and do it in the evening because sun on the wet leaves will burn them.

Discoloration is usually a lack of nutrients. Pick up some Osmocote Plus and follow package instructions.