I take medication for PVC's and high blood pressure. (32/f) I am extremely careful about what I take and eat because of the pvc's. I start school in august and found out I need to have: tetnus, hep series, and mmr. I am worried about getting sick from these shots. I have not had a vaccination other than meningitis for a long time. Am I worring for nothing? Is there anything I can do to make sure I don't get sick from these? thanks for the help.