Speech issues and passing out

Have you been to the emergency room? I would start there if this symptoms just appeared.

Have you seen the movie "Unrest?" In it, the filmmaker who has ME/CFS, is shown experiencing the speech problems you mention. It happens after she has gone beyond her energy limit. Also, areas of vision blacking out are one of the symptoms of ME/CFS.

Hi.. like already said if in doubt get to a doctor and have things checked.  Second the word thing is pretty common with CFS.. its said that it causes low grade inflammation in the brain and depending on where in the brain it occurs will depend on what symptoms you get. Speech issues are common.. often mumbling, word finding etc.. i also have have times when i look like i have had a mild stroke... This is caused by a type of migraine that effects CFS/ME sufferers.

As for the blacking out.. once you have been checked out by a doctor and if they find nothing wrong you need to look down the road of POTS.. look it up.. alot of people with ME have it , but it often goes un diagnosed as there is even less known about it than ME. it causes the symptoms you mention.  You can often start suffering with it out of nowhere , can be brought on by an ME flare or a viral infection of some kind