Yes your nails likely feel like they are two sizes two small? Yep it happens....just be sure either you or a professional can trim them short to help that aspect. I say Professional as we can't always 'feel' and can cut ourselves and make things worse. I would rather be chicken than hospitalized w/an infection?
As for the cold or hot? AND both can and do occur...for cold, those barley filled heat-em pods are good for slow gentile heat [providing you don't really HEAT them, just warm them] for heat? I use a spray bottle filled w/room temp water on hot spots and let it evaporate.
Both feelings HOT or Cold are Very Intense!
Bon-Don IF your fatigue is not due to diabetes? Get yourself truly checked out by a neurologist regarding your fatigue....it's common among other neuro issues and, if treated promptly, can get things on the mend.

Slog thru the 'Stickies' and see if something 'hits a nerve' - sorry, can't help it? 's Keep at it - j