Yes, your "money" could be and would be forked and you will lose everything invested in bitcoin.
This is a good article with lots of research and observation
http://www.forbes.com/sites/laurashin/2015/12/28/should-you-invest-in-bitcoin-10-arguments-against-as-of-december-2015/#2715e4857a0b4841a9f546691. The parameters of the currency could be changed.
2. There could be an attack on the network.
3. Transaction volume moves off the Bitcoin blockchain into side chains or permissioned chains.
4. The system does not successfully transition from being subsidized by the block reward to being paid for by transaction fees.
5. The Chinese firewall or another Internet issue causes the global Bitcoin network to be split for a few days.
6. The lack of a central authority prevents the protocol from progressing.
7. A competing protocol could overtake it.
8. World events prompt a crackdown.
9. Government regulations in one part of the world put the whole network at risk.
10. People get burned by it as an investment.
I am not a specialist of such kind of this things to be able to judge is can be true or not. But if bitcoin could be so fragile must have been disappeared time ago. There are to many theoretical possibilities which can happen in every moment. And every of those has its probability to happen. But even this is far away to be taken in consideration. Because if the probability that something bad happen to an event is 10 percent (mean that can/must be verified/happen 1 time every 10 happen time of the event) may occur that the event can happen even 100 times and the bad don't happen even 1 time. Then can happen 10 bad in a row. Or only 1 or 2 and be other 50 time again with the happen of the normal event.
What is the meaning of this example and its connection with the post of OP. All that listed weaknesses of bitcoin (if true) can/must be rare. If so cannot be made in consideration as a real risk. Otherwise, if it would the opposite, bitcoin already should have been only a memory. If we must have fear from the above then must be much more fear about something much more important than the bitcoin: our life. I can give here 100 reasons which will make someone to think that his life is in big danger in every place he will be. For example: in every moment can happen a big earthquake which can disappear the life on Earth; in every moment can happen a big clash with an asteroid (like has happen in the time of dinosaurs) which again can disappear the life on the Earth; in every moment and in every place can be some insane or drunk dead which can shoot and leave dead everyone. I can continue without end with this cases. All possible to happen in every moment. The same probability or examples seems to me all the points listed by OP. And so must be. But if someone think in this way then its life is ended. He will feel fear even at his WC.