Several years ago I had two of three scheduled Lyme Disease vaccination injections. The injections were high on my left arm near the shoulder. The injections hurt more so than other injections. They left me with temporary arthritis in the shoulder and a large permanent lump sized the injections site. I recently had a deer tic bite but treated it as recommended by my physician - probably eight days ago. The wound is healing well with no Lyme Disease symptoms apparent. Three days ago I had a flu shot in my right shoulder. But during the past two days the lump on my left shoulder has been very sore - an unusual occurrence. I am concerned about what may be causing this.