Hi BethEllen, you've recieved so much great advice here so I won't say too much and bore you!!! I Know that when I get sick EVERYTHING is magnified: pain, sorrow, anxiety, fear etc...I'm sure after five months of tests and waiting you must have a really high level of anxiety so try and keep your anxiety/depression in perspective (easier said than done I know!). Last year I was booked in for a surgery only to have it cancelled the day before because a medical emergency came up. Boy was I anxious over that!! (and annoyed)
As everyone else has said, try and breath deeply and remind yourself that this is temporary, as with all things in life...it will pass, have faith my friend