we've heard a bunch of times about fiat money and escalating problems. any reason for bitcoin to decline rapidly and all the online wallets closing down how will everyone fear the loss of bitcoins. It can happen because its the problem with real money its causing bitcoin to get blocked halfway.
Quite not clear what you are refering to saying blocked halfway 
If you are talking about some countries considering bitcoin illegal to exchange than there are not many such type of country. In most of the countries bitcoin is being traded and being used even in local merchant level. So i am not seeing anything like bitcoin lossing total movementum due to any such banning etc.
Talking about price it may go down and go up which is normal and depends upon lots of fact, there are not such term like economic crisis for bitcoin.