Were any of your injuries combat related or due to dangerous duty assignments. If so you might be able to get your regular retirement pay and your disability pay without any offset. You have to finish your 20 years if you are able. I would do as you have been told and keep documenting all your medical problems. Your command may not like it but you need to look out for yourself because, as you know, once you are discharge the military is through with you. You are delivered into the loving hands of the VA. You came into the military able bodied. Why should the AF just be able to dump you back into society without making effort to fix you?