Trange Sensation, Burning or itching ?

[luke55]

Last night, trying to fix my problem of absence of HRV data, I put the watch on the inside of the wrist, where the skin is less dark, since Suunto says that dark skin may interfer with heartrate measures.
I wake up in the middle of the night with a very unpleasant sensation just under the watch, between itching and burning.
I took off the watch immediatly.
This morning the sensation had disappeared.

Is it plausible that the light emitted by the watch is causing this ??

[sartoric]

@luke55
Well, who knows, everything is possible maybe you have very sensitive skin … but I would say it’s unlikely.

I guess it’s more probable that it’s blocking blood flow and pressing on wrist nerves.