Recommendation for vitality

Going through a bout of diminished vitality. Happens every so many years. This time partially as a result from grieving a family member.

Gave myself a few months of rest and grace but, my body isn't recuperating. Bad joint pain, internal tiredness and the mehs and blahs. I have some sort of existing undiagnosed muscle/joint issue. Arthritis and autoimmune tests normal.

This go around also have inflamed submandibular glands.

Any advice or recommendations on getting vitality back? (Not just energy boosters) Really have to get myself together.