Sorry to hear this. Sounds to me like you may want to look for another doctor. Someone needing transfusions more than once and passing out from low blood sugar shouldn't be brushed off!
I had anemia after losing a lot of blood. I remember being unable to get warm, it was awful. I hope that gets resolved for you, and quickly!
As to the low blood sugar, do you eat regularly? I keep little bags of nuts, jerky and protein bars in my purse or desk at work, and string cheese and yogurt in the fridge. If I get more than 4 or 5 hours between meals or a small snack, I can definitely notice it. That and staying hydrated, I get fuzzy headed if I don't drink enough water.
Hope this helps. Take care and keep asking for help from the medical community until you get what you need!

Yes I definitely appreciate the suggestions ~ I need to find a primary care that is more knowledgable of gastric issues ! I am going to keep some snacks on me -- also have a tough time stayin warm ~ but I sleep with a heating blanket lol !
Thank you again for your suggestions ! Much appreciated ~

I'm sorry you're having difficulties. It sounds to me like your PCP isn't familiar with on-going medical care of GBS patients. If you can, find an internal medicine physician who knows how to provide support for GBS patients.

Low blood sugar, for me, happens whenever I eat the wrong proportion of protein to carbs. Bottom line, protein always has to exceed carb intake.

If you haven't been given a maintenance nutritional program, I'll share with you my program:

1200 calories, make up of 40% protein, 30% carb, 30% fats (the good kind).

I take a quality iron supplement (a product called Ultimate Iron) a couple times a week. I also take a boatload of other vitamins, including a bariatric multi vitamin. If you aren't taking supplements, I suggest that you begin to do so. It can help a lot to keep your energy up.

Good luck.

Yes.. I am now looking for a new primar care doc...
I need a bariatric supplement - what do you use ?
I can't take iron supplements anymore ~ my body is rejecting it !
I'm going to try that maint program. Thank you for the suggestion !

Sorry to hear what you are going through. I wish you well. I have also experienced my blood sugar drops. Never understood why. A doctor recommended me to buy a Glucose pills or drink a glass of orange juice. This has helped me.

My blood sugar crashes everyday between 9:30am-10:30am, without fail, no matter what I eat or drink for breakfast. Having had issues with it for years now, I can feel it when it hits the mid-low fifties, and have some cheese.
I also had to have iron infusions, as my ferratin was a 6. They sucked, but hopefully got me to a level I can maintain... we shall see. I'm 3 years post-op, and these are the only "complications" I have had. Talk to your bariatric clinic/doc about your issues, they are way better able to help guide you than your PCP.... which it does sound like you need a new one of.

is your body able to absorb iron from foods you are eating? you may need to incorperate more of them in your diet as well as suppliments. If you blend up your own protein shakes add a few handfuls of spinach with your fruit and yogurt or protein powder (I don't use protein powder but use plain greek yogurt with fruit, spinach, a few ice cubes and a splash of juice if needed) brocolli is high in iron as is calf liver if you like that ;( I am only 12wks postop so haven't had alot of iron issues yet, knock on wood...my blood pressure has been on the low side and I am trying to get the pcp to lower or take away a blood pressure med. I take celebrate multi vitamins, they have iron in them and are not chalky like some. Good Luck and I hope you find a doc who understands what your body has been through