Lost Cat - Please Help $100 reward (Houston)

Constantine is a big cream colored cat and is indoor.
He has a medical condition that requires him to eat a specific type of food so it’s important that he’s found.
Unfortunately he likes to dart outside from time to time and this time I didn’t see him go.
He’s been lost for 4 days and I’ve been walking around my neighborhood looking everywhere.
If you have Constantine or you see him out somewhere, please contact me immediately.