welcome to JA
has he seen his doctor recently?
I don't see that you are online right now, so I will answer this to the best that I can
Your husband's symptoms are concerning, period.
The weakness and dizziness and thirst can be cause by dehydration and electrolyte issues brought on by the lasix and spironolactone
This could be digoxin toxicity
this could be diabetes
He needs to go the A&E today for evaluation and treatment
he also may have an undiagnosed infection
but these tests need to be done today and right away
going to the GP will delay treatment
I am an ER doctor. Normally I don't send patients from just answer to the ER, but this is one of the few times that I do
let me know if you have other questions. please hit reply