Received Prevnar 2 Days Ago. I Chose To Have It

Received prevnar 2 days ago. I chose to have it sub q.within 4 hrs. Itching, increased pain,swelling and redness and heat from my elbow almost up to my deltoid. Pain beyond anything I have ever experienced.i am a 67 year old,30 year retired ER nurse. Seen at an urgent care 9-30-15. Given a shot of tornadol .and pills for 5 days. PA said to watch it and come back or follow with my family MD. I am just afraid it is cellulitis.I am amazed myself as I have had immunizations for over 35 years with no problems.T