the last few days I've gotten killer headaches.. i know it's most likely tied to the pre-op diet.. but i'm wondering will these continue on into the post - op one too? or can i expect relief as my body adjusts?

It might continue until you're past the liquid only phase of the post op diet. Thankfully, it's temporary.

When I don't take in enough water/fluids I get a headache... for me it's my "dehydration" reminder- are you getting in the required fluids?

My headaches are dehydration as well. Could you possibly be having caffeine withdrawals? Those can be rough also.

i got (bad headaches) on my pre op phase..detoxing from diet soda, junk food etc....as missy stated, it passes...my dr and nutrtionist both advised me this would happen.....and i just took tylenol and it does get better......i guess it was my bodys way of saying get this crap outta HERE

For me, coming off caffeine causes killer headaches. I call them "loose brain" headaches because it feels as though my brain has broken loose and is sloshing in my head. They last about 3 days and the withdrawls are over. Hope you feel better soon.

I get headaches when I dehydrate, go off caffeine, or believe it or not, actually from caffeine. Sometimes it's hard to find what external factors trigger your headaches if there are any to find.

I get headaches when I dehydrate, go off caffeine, or believe it or not, actually from caffeine. Sometimes it's hard to find what external factors trigger your headaches if there are any to find.

And then there are the migraines I get from out of nowhere, the sinus headaches, and the beer triggered headaches. (I am maintaining, so I allow myself beer). I'd get less headaches if I didn't tho.

Most likely it's a mixture of all of the above apart from the beer... i switched shakes also to one with an even lower carb well actually Zero carbs so i'm sure my body was in total shock.. and living in AZ it's very hard to stay hydrated. though if i where to give up my coffee... i'm not sure i'd be safe to be around it's my only indulgence and even that i changed to be as healthy as possible drinking only organic coffee with silk milk and organic stevia..

I get headaches after I drink alcohol from the dehydration. When drinking it's a good idea to follow the old 1-1 rule of one glass of water for every alcholic drink you consume. I was getting headaches every single day in the back of my neck and it turned out that the caffeine in the coffee i was drinking was the culprit. I switched to decaf and never had problems again. If you're getting headaches in the back of your head they may be caused from constricting blood vessels.