I take 50 mg ER (extended release) of metoprolol which is a beta-blocker for bad palpitations. They seem to be doing well with that. But I am also taking Klonopin .25 mg up to four times a day and sometimes my blood pressure is in the 90's systolically (which the MD isn't too concerned about), but I noticed my pulse sometimes is in the high 50's or low 60's, which is really scaring me. Does anybody else have this?