about 20 yrs ago on holiday i got infection, yellow tongue , swollen glands, temporary blindness for approx 12hours, got backhome and was tested, treated and recovered from glandular fever?, since then ive always be tired/ fatiged and have been diagnosed with sleep apnea (3 yrs ago), using a cpap machine, still tired all the time, is the tirdness connecected? full bloods done few weeks ago all clear but want to test again in few weeks for liver function can all this be connected ?