Fainting/dizziness problems

I know it's been said but you really do need to call the doctor... It sounds like orthostatic hypotension... it's where your blood pressure bottoms out with position changes like standing up. Dehydration can be the issue very easily.. if you increase your fluids you add more fluid volume which can help increase your blood pressure.  If you really don't think you could possibly be dehydrated you really really need to see a doctor about it.

That is something you don't want to mess around with. See your doctor ASAP. I hope everything is all good.

I had this at a couple of months. Turned out my bp was really low so i knew it was time to quit bp medicine which I did with doctor's ok. Get your bp taken soon. I was glad to have a home bp cuff to figure this out. And also it is a sign of dehydration so get more liquid in right away. But call your doc just to make sure,

Diane

Are you taking anything like fat burners or diet pills?

I had the same experience it was REALLY bad a few months post op, I called the NUT, she said it was norbal but ALWAYS check withyour doc. 
I still get it everyonce in a while, mainly when dehydrated or when changing positions too quickly. (You should see me at yoga, I have to just sit down for a few seconds at least once a class.. ;)

 I had similar symptoms caused by low blood pressure and dehydration, my BP meds had a diuretic component so we found it was the culprit.  Under my primary care's supervision I got off the BP meds and felt much better within a couple of weeks.

 that has been happening to me for a while. after i get up i have to close my eyes and stand still and sometimes sit back down. Its not everyday and lately now that I think about it has not happened to me but when it did i felt the same way you did. I never checked to see what it was though. let me know if u find out

Google: Positional orthostatic hypotension

Diagnosed with it last February. Increased fluids, more activity, and getting up slower resolved it. I still have episodes on occasion, but have learned that wiggling my legs before getting from a reclined position helps tremendously.

Also, I had cut sodium intake to avoid water weight, and apparently that's not recommended considering we need sodium for our bodies to "work" properly. So, I drank regular gatorade, and stopped being so obsessive with salt. Not that I salted my food heavily, but I avoided everything with sodium.

Anyways, it is because the receptors for our blood pressure are in our neck, and when we bounce up, those receptors are used to regulating blood pressure for our previous heavy bodies. Well, with major weight loss, those receptors are confused, and get all cattywhompus. That's the lay version of what my PCM and surgeon both explained to me.

You are like "House"  I agree W/ your diagnosis!  Try not to sit up/stand too quickly.  Leaning over and straightening back up can cause it too so be careful when bending over.    Remember to hold onto something....at least for the time being .....while experiencing this!   Don't want to end up with a head injury!

LOL LOL I'm such a research geek. My husband calls me the hottest nerdy geek he's ever met.

The day that led me to my PCM's office is; I was bent over at walmart grabbing something from the bottom shelf, and I heard a man's voice go "ummm hmmm". I popped up so quickly that I almost blacked out, trying to grab the cart, and stumbled all over the place and felt arms slide around my waist, and when I could gather my senses, I was being held by a man in his 50s/60s with a zztop beard and was missing at least 3/4 of his teeth, and reaked of Jack Daniels and Pall Mall cigarettes. He said somthing "along the lines, darling it's too early to get tipsy". . . All I could think was "Please sweet baby Jesus, I hope his kinfolk aren't waiting for me in a van out front." Ha ha ha