I am 57 yrs old and had 2 massive heart attacks on Jan. 10, 2015. Had 2 stents put in. My cardiac doctor placed me on Metoprolol 25mg q day. I was already taking Bisoprolol 5mg BID because I have a racing heart. I didn't even think of them being in the same "family". I immediately noticed having shortness of breath maybe once a day. On my next checkup, I told her about this. Really no response. Now my SOB is several times a day and more intense. Could this possibly be taking these two together and has anyone else experienced this??