I have IBS (caused from prolonged use of bacterial antibiotics because of gut infection after surgery). Now, I am allergic to 7 different antibiotics, most foods, wheat, dairy, yeast, etc...Three years ago I had an outbreak of shingles. Currently, I have mottled legs and aching knees. From my knees to my ankles I have tingling and throwing at times. I am itching all over but not at the mottled skin area. I will call my Doctor on Monday but does someone know what is wrong?