@bren65 I'm sorry your having this affect from your inj. I would talk with your Dr but feel its because as you suggested from your low weight Can you keep stuff down if so try the fattening drinks milkshakes, smoothies and ice cream in any form if you can't eat This to will pass but will take longer for you probably Some of these symptoms are the antibodies building in your system but regardless of my input see your Dr asap.