All medications react differently with everyone. I have been on toprol xl and lost labido, went to calan sr and paralyzed my colon/bowels. Now on coreg, causing acid reflux. I can live with this with the help of nexium, may stay on this it is helping control blood pressure and arrythmia.

Ditaretics dehydrated me and caused me to have more chest pains and hypervenalation problems.

You are all on the right track with investigate everything well, keep open communication with your doctor, and dont give up

angeleyes