Last year oct my gall bladder was removed. Since then my sgpt and sgot went up. Today it's sgptb99/sgot 78. Do I need to go to gastro doctor?

Levels up. Why were they checked in the first place? They are very mildly elevated. I wouldn't panic and follow up in several months to repeat other option to repeat u/s of your abdomen looking at gallbladder site.
Possibly. The most common cause i the U.S. For enzyme elevation of hepatic origin is fatty liver. That being said, without knowing your history or potential exposure to other entities and not having examined you it is impossible to give you a definitive answer. Your pcp would not be a bad place to start, and if they feel it necessary will refer you on.