Is it cdiff or anxiety?took antibiotics for 15days.now 2mths later i have bloating, sometimes i don't get hungry & have nausea, dizziness/imbalance.

Not C. difficile: You do not describe diarrhea so clostridium difficile disease seems unlikely. Some antibiotics such as gentamicin and tobramycin can cause dizziness which can be permanent.

Intestinal dysbiosis: You probably have an imbalance of your intestinal bacteria. You should take a good probiotic, such as pb8 and if that does not help, see a doctor.