Is it half your lips or your whole lips?

Half my lips tingle all the time (the left side), but the right side doesn't. I have a lot of numbness on the left side of my face, so this is part of my PN.

If both sides started to tingle at the same time, then I personally would suspect another cause. For them to both start up at the same time the nerves on each side of the face would have to be affected at the exact same time which is not impossible i guess.

My facial PN is split right down the middle as that is the way the nerves work in this area.

Other options can include chronic hyperventilation (even one extra breath a minute can cause this).

hth
raglet

hth
raglet