Post shingles pain and tiredness

Brain and nerves
1

**I had shingles almost 2 years ago. from time to time **i get a dull achy pain in the area i had it, but i also suffer with excessive tiredness, to the point of falling asleep at work!! could this all be related to having shingles? seeing my gp again, but he seems to be at a loss as to what the problem is . did attend a sleep clinic and use a mask for sleep aponea , but gound it disturbed my sleep more than anything. the constant nodding off is getting to me. . any help appreciated . thanks