Formication or...? Causes?
 

At night in my right hip I have the sensation that worms are crawling under the skin, in about a 4" x 4" area. It's disturbing, had started years ago, ceased but has now been back for a couple months.

One of the first Google hits for "feels like worms under skin" is a condition called "Formication".

I do have Peripheral Neuropathy , but currently just in my feet. Curiously the worm crawling sensation only starts at night, mostly lasts only a few minutes.

Hi,
It's been a while since you posted this message so I'm hoping you have had some relief by now. It seems to be on and off from what you've written.

I'd try to figure out if you were taking any similar medication or doing anything similar years ago that stopped and now has started again.

I would wonder if it was connected to any medication that you've been taking. I know that some SSRIs and SNRIs can cause parasthesias similar to what you've described, but usually when withdrawing from the medications. However, those types of meds all have different lengths of half-life, so some are quite short and others longer therefore if you take your med in the early morning then it can have worn off quite a bit by the time you try to go to sleep.

Those types of medications wouldn't be the only ones that would cause parasthesias though and I *think* that Metformin, for example, can be a problem in some people as well.

Also, if it's just the one little area all the time and it's not travelling from place to place on your body then I would wonder if it's related to a movement problem in your hip or from your back that gets exacerbated during the day and then acts up at night.

So many of these symptoms seem to get worse at night. I have RLS and it usually only comes on at night when I'm trying to sleep or if I'm trapped sitting in a car on a long journey.

Anyway, please let us know how you're getting on.

Definition of Half-Life. PubMed
Half Life - PubMed

Thanks for your reply, Lara. I am not on any medications these days, thankfully. The crawling sensation has subsided mostly, sometimes the area feels a bit itchy, but not to the point of annoyance. Nighttime is always the time when weird anomalies occur. During & sometime after I treated for Hep C I would have some weird 'spider web' sensations around my left ear/neck area. My Dr. said those were likely tactile hallucinations. They come and go from time to time....