Are my feelings changing? What shall I do?

Have been with my boyfriend for 3 and half years. The relationship has mostly been good, we partied a lot together, going to festivals and great holidays. He is a lovely guy and it was a massively positive change from my previous relationships. We have now had a daughter together, she is 10 months old and lovely. It is hard work though and i have been slightly overwelmed with the life change. We are currently living in a small flat whch belongs to my family. Its a great flat but is feeling increasingly tiny with the three of us. I am a singer and my boyfriend runs pubs. Since having bab I havnt had time to do any singing although I am starting to look forward to the idea of starting my own band. Thing is recently i have been going through some very strange thoughts and feelings. Wondering if the relationship is right at all... are we really right for eachother, are we really suited etc etc. .what if he isnt the one, what if i got it all wrong... what if i will never feel completely happy.... and then when i think i also think 'shit' if we are not... what am i gonna do now, we have a daughter! For the first time in my life i feel very trapped and stuck. None of this undermines my love for the daughter can i just say.... or my love and respect for my boyfriend....Thing is my boyfriend is an amazing man, and is really making an effort to make things work. He is trying desperately to buy a house so that we have more space. He provides for us all. Why am i feeling so strange? and what should i do? Is this a normal way to feel after having a baby?

Life changes must be super difficult to adapt to, I understand you are taking the time to think about things like this, however.... Are you happy? If you are I suggest you just leave these questions alone, if you love your boyfriend and everything is going well then there no reason to get yourself all worked up darling. But you feel like you can't do that then just talk to your boyfriend, let him know your issues and your concerns. Its better to have these concerns in the open so it makes it easier for some communication for both of you. Just make sure when you talk there is no distractions so everything is cleared, you never know he might have something to say too, some concerns. I wish you the best of luck Jennifer