Angel, I can so relate to what you describe and that sounds exactly like what I experienced with thrush.
I would highly suggest getting diflucan from doc, if you can tolerate it, I would use the troches I mentioned if you have trouble with the Diflucan.
I would then ALSO use Oil Of Oregano tablets. They are tiny tiny and gel tabs so easy to swallow and they are a natural product that kills fungus so definitely start taking this daily and don't stop. You cannot taste it and it has no side effects.
And lastly I would start on probiotics to get your system harmonized, which should lessen the recurrence of thrush overall, plus it is just good for you otherwise too ... they say it all starts in the gutt... so probiotics help to get you off to a good start and balance everything.
And just a word to the wise of what I have found .. if you have that sticking in the throat / esophogus sensation try eating without a drink and when you go to take a pill make sure you have not drank anything prior for at least a 1/2 hr to an hour. For some reason I have noticed that after I take a drink of something, even water, it makes it worse for what I try to swallow next, that is not fluid, so you may wish to try this to see if it is the same for you.
I hope you get it cured soon hon - I know how frustrating it is and hey, I remember it getting me so scared at one point when it got bad, I showed up unnanounced and crying at my doctors office begging them to help me because I could not swallow anything ... don't wait till it gets to that point - act when it first starts.
They say thrush is common in cancer patients and I know it is also a common occurence when you take any type of antibiotics. Even with my healthy family members, I make them do a 2 week session of oil of oregano if they have taken any meds for anything (even a cold), just to ensure their system stays okay. You can get internal yeast and not even notice it, so I am not taking chances with that nasty stuff. Mine went undiagnosed the first time for 1 1/2 years when I kept explaining to doc what was happening, they did not clue in - until I went in not able to swallow at all. I have been on steroids for years and had been given antibiotics a few times during that timeframe, so you would think they would have clued in, but because I did not have white patches in my mouth, they didn't have a clue...
Ok I am rambling so I will hush LOL ... but this one hits a nerve with me because I have been thru so much with it. I wish you the best and a fast recovery from it. You have been thru enough and don't need this to deal with too.