I began taking caffeine pills 1 or 2 day for a week or 2, but that barely dented my fatigue and tiredness
I have also been experiencing hives on and off irregularly for that year, with no apparent allergic catalyst. Each time the hives flare up, there is nothing in common with the circumstances.
I've had my blood tested, the only abnormality was a slightly low B12 count, which I took B12 for, for about 6 months. That helped with the sleeping, but not with the fatigue, lethargy and fainting.