not sure what your gi system is, but if your colon has been removed you do need b12.  i give myself an injection monthly.  that might be better for you too?  

I would start by having your doctor order lab work for b-12, iron and ferritin. Although I was not having problems with fatigue, my GP found the levels to be below normal and had me take one SUBLINGUAL B-12 and an iron tablet plus Vitamin C daily. This did the trick for me and is less involved and costly than getting it by injection or IV. I have had no adverse effects from either of these supplements.

I would suspect your symptoms are not related to the B12 supplement unless you are very sensitive to the additives in it. A lot of them are sublingual and contain artificial flavors and all of the ones I have had contain red dyes.

But, more likely, your gut symptoms have something to do with gastritis, gallbladder problems, adhesions, or pouchitis. Your gym workouts may be exacerbating something.

Testing for B12 deficiency is a good idea. Having your colon removed does not mean that you need B12 supplementation. B12 is absorbed in the last few feet of the ileum, not the colon. But, if you have chronic pouchitis or Crohn's, it may interfere with B12 absorption. If you take acid reducers on a chronic basis, that also can block absorption. It is also fairly common in the general population as we age.

You should probably have some general screening labs too, along with a complete physical, before assuming your fatigue is a vitamin deficiency.

Jan

Any pill you take can cause stomach upset. I had a surprisingly awful reaction to Lact-Aid on several occasions, and that's not supposed to cause such nonsense. I abandoned Lact-Aid, and you might want to abandon that formulation of B12. As other have pointed out, you probably aren't B12 deficient (though it's worth checking), and there are other B12 formulations that probably wouldn't behave their same way in your body.

Thanks for all the responses, I has my colon removed with j pouch formation in 2003. I also had a baby on August 30 th. He sleeps good and all night for the past 2 months so I figured my fatigue should be getting better. I guess I need to have some lab work done to see if I need any supplementation. Thanks again

Ha! New baby means fatigue for the next ten years! If you are breastfeeding you may be dehydrated and/or protein depleted. Sleeping through the night is only part of the story.

Jan

just to update my post: both my gi and hematological docs have said i should have b12 injections on a monthly basis.  they are very simple to give oneself.  when i skip a couple of months and have blood work done my b12 is low.  b12 absorption is poor, according to them, with colon removed and end of small intestine used as j pouch.  perhaps because of the pouchitis and other j pouch problems my absorption was not good.  

but i agree--even without having kids--the baby makes a big difference re energy level.  jlh

It varies person to person. After nearly 20 years I became B12 deficient. Oral supplements brought my levels right up, and I even have chronic pouchitis now. My husband, same age as me, also was deficient in B12. He has no j-pouch, but does have UC in remission. He responded well to oral supplements too.

But, first step is to be tested. Then you know what you are dealing with.

Jan

I was prescribed Nascobal, it's a B-12 nasal spray and it got my levels up to normal. I was injecting 1x week but doing subcutaneous injections instead of IM. Can anyone with experience injecting B-12  clarify whether it is injected subcutaneous or intramuscular?

B12 injections can be given either subcutaneously or intramuscularly.