I would say give it a shot. You are 100% right some of the issues you have mentioned may make it hard but never know, you may be able to find the right person who is willing to stick with you through it and help you- after all that is what a true relationship is about.
As for when to mention the above issues that is a good question and i would say for you to decide. If you were to put them on your profile no doubt it may scare some people off. But honesty is a key factor to many things and if you are suffering from some things and the other doesn't know it could be easy for them to say some things that may not help/will hurt.

Overall it is your choice. Dating itself is not easy and there are many people out for the wrong reasons etc. but whatever you choose I wish you the best :] they say there is someone out there for all of us, and we learn from hardships.