Thanks in advance for any help, knowledge you share. I have a male (fixed)3yr old cat that recently has started an odd behavior. He licks the concrete patio in the back yard when he goes outside. He also seems a bit lethargic. He lives with his momma and his brother from the same litter as he. All fixed. 4th of july freaked them all out, and I first noticed this behavior around then.His mother seems to be more aloof to him, usually they're very tight. I just lost my job and can't afford to take him to the vet. Appetite seems okay, tail is up alot. I'm just worried/wondering. does anyone know if the concrete licking is symbolic of a vitamin deficiency, disease(god forbid) or any other ideas, I love him so much. Any additional info wanted, I'll send ,please advise, Thanks