ROCK, norepinephrine is similar to epinephrine (adrenaline), except that it is stored in the nerve endings, as opposed to the adrenals, like epinephrine. Things like EC, cause the release of norepinephrine from the nerves and norepinephrine is the actual agent that causes all the effects of the EC stack. So, the answer is yes, if you are sensitive to the EC stack then yohimbine will cause the same problems, since they work to do the same end result- release more norepi.
A side note: while EC act to release norepi, some drugs don't release norepi, but actually ACT like norepi. Clenbuterol, Albuterol, Metaproteranol, etc. all act in this manner.
P.S. Where do you live in Lousiana? I am a exhile from N. O., born and raised there, but now living in Atlanta area.