Yeah, but, sometimes a second opinion is a better opinion!! I have found that my GI- who is affiliated with a teaching hospital is more in tuned with new drugs, therapies, etc. I know about the side effect deal- if there's a side effect- I get it!!!! I also would not wait 4 weeks to let him know- call him and say you'll go- it may take you that long to get an appt there- you can always cancel if you change your mind- that way it will be there if you want it! Look up!!!