trouble digesting beef

Over the last few years I have had more and more problems with digesting beef.  I can have 1 hotdog or hamburger without much problems but any more than that and the next day my legs feel weak, I'm tired and even feel a bit dizzy.  What is causing these symptoms?

[Dannyd763]

This problem started with steak.  I haven't had a steak in at least 3 years. I do not become completly constipated.  I will have 1 bowel movement instead of 2 or 3.  Normally, you can set your watch to my bowel movements.  I have no problems with chicken or pork or any dairy problems....just beef.  I've looked around on the forum but do not see any posts with my symptoms.

[FurballsMom]

I actually know of other people sensitive to beef.  Sometimes a friend of mine who is sensitive to beef will buy buffalo meat when she can buy it.  Sometimes beef bothers me, too, so I don't eat it all that often.  It constipates me, makes me nauseous and even aggravates the fatigue I get from my autoimmune issues.  I never mentioned it before because I have a long list and know to simply avoid eating beef too often if I don't want symptoms.