What Causes Difficulty In Swallowing Food?

my daughter just turned 3. yesterday, she seemed choked while eating an apple but she was able to throw it out. last night, she felt some thread got into her mouth and i helped her wash the thing out. Today she choked again while eating rice. now she seems like having discomfort on her tounge and she wants to spit or regularly wipes her mouth and tounge with a cloth. what does thismean?