Hi Emily, it sounds like you used to be more active, when did you start to feel this way? My mom is 65 and she still likes to get out and do stuff. 46 isn't that old, but maybe you're going through a kind of mid-life crisis? Or it could be depression, since you mentioned you lost interest in things you used to enjoy?

It might be a good idea to see your physician to rule out physical ailments like Vitamin D deficiency, Hypothyroidism, Low blood sugar, etc. Just some suggestions.

Take care.