Experiences after VNS was turned on

Hello, I have recently got the VNS implanted and it was turned on a few days ago. I have no problems so far just still from the surgery. After the surgery I had a horrible cough but the Doc explained if was just swelling from the surgery. It went a way. I was so nervous to have it turned on. It really wasn't that bad I did feel some chest pain that went a way. Please tell me how your experience was. It took me years to finally give into having the surgery. I hope I won't be sorry. Thank you