I believe the purpose of contrast is to show more detail in the
pictures. Our MS posters often get their brain MRIs with contrast.

But without contrast is safer for the patients, since the visualizing
agents can be toxic to some people.

If something is found iffy...on a contrast free test, then the option to redo with contrast may be offered.

Ok thanks. So does anyone experience same symptoms as i? Especially this buzzing or vibrating... Like the skin.is irritated as sth comes across skin

I vibrate or buzz from head to toe sometimes. It feels deeper than the skin though....it feels like I have a low level electrical current running through my body.

I also get something I call "the pricklies" which does feel more like a skin-level thing.

What she said!

My kids see me rubbing my arms and hands together sometimes and say, "daddy you have the pricklies? Did you eat sugar?"

My current symptom is an unbelievable burning in my feet, they literally feel on fire. Icing them down helps. Hard to do it at the office though. :roll eyes: Next week could be something else entirely. Its quite a whirlwind.

One culprit for burning is the family of vegetables called
nightshades. Potatoes, tomatoes, eggplant, peppers, hot spices.

Look to your diet and see what you are eating. Try doing an elimination of this veggies and see what happens. You might be surprised. Tomatoes have the extra problem of releasing histamine and this causes skin discomforts and burning in some people.

MSG in food also triggers ME.. It is everywhere and unnecessary and the glutamate stimulates the NMDA pain receptors.

Yeah potatoes are basically the same as eating sugar from the spoon. But I usually can tolerate them in small amounts. Maybe i will have to eliminate entirely. Can't eat tomatoes anyway due to years of reflux (which had me on Prevacid for over a decade, which I believe gave me SFN - another story). Don't eat any of the other stuff either.

My pricklies pre-dated my SFN by a few years. I think they're some kind of a response to physical discomfort. I'm pretty sure I experienced them when I gastritis really bad in 2010 and then shingles in 2011. I wish I knew for sure that they didn't start with shingles, but I just can't remember. All I know for sure now is that they're a "pile on" feature. I never have them when my other symptoms aren't bad, and they're never stand-alone.

Patrick, do you have lidocaine patches for your feet? I find they really do help.

I sure hope you are using methylB12 now after a decade of acid blocking drugs!

Yes, I also have buzzing and vibrating. I get rain drops, pin pricks, stabs, and all kinds of crazy stuff.