feeling in my throat like my breathing was been cut off or getting a very small amount of air

hey im 22yrs old  female  have been looking and searching for answers for 3 months 

i will try to describe it the best i can but would like to know if anybody else suffers it or knows a cure or to releif it .

it started as a thump kind of feeling in my throat like my breathing was been cut off or getting a very small amount of air in it would send me into a panic attack .

but now the panic attacks have cleared its stayed for a 3 months and no doctor has a clue what im on about and do not seem bothered but this a kind of ruining my life as im scared that im going to stop breathing .

it can happen in 3 diffrent ways

1.feels asthough theres a jerk/thump in my throat or sterum and i will feel my breath gets caught or sucked right out of me happens about 20 times a day lasts for seconds but can happen in a row so could feel it for a hour or so but still each one been seconds long.

2.feels a kind of ripple of air rushes through me starting from chest normally or like heart has stopped and also takes my breath away or feels i stoppedbreathing lasts seconds.

3.a involatray breath like all a sudden ill take a massive breath i dont mean to it just happens and its uncomftable.

all these are not painful although i do have odd chest /rib pains /arms pains 

the first time it properly happened my heart rate would not slow down and i ended up in hospital im awaiting results from holter monitor that i will hopefully get monday .