Welding with a pacemaker

Wow. I've got a pacemaker/defibrillator and I never thought about welding issues. My cardiologist did recommend not putting a cell phone in a chest pocket, as someone mentioned. I believe on later models, it is okay to use high frequency cleaners that the dentists use. You can check with the AICD maker, but it is hard to get an answer. If the defibrillator goes off, you will never forget it. I lived in fear every second of the day for the next three months after mine went off. I was even afraid to cough. Now I need to ask about welding.