Anxiety Support Group
Anxiety is a physical condition marked by intense and persistent feelings of distress, fear, angst or dread. General anxiety caused by routine day-to-day stresses usually passes quickly and is experienced by almost everyone at one time or another. However, such feelings that linger over time and are very difficult to cope with, and which lack a clear cause, may indicate...

I would feel anxious too, if a guy was head over heels so soon, talking about the future too much, putting any pressure on me to feel the same way he does, etc.
You can talk to him. Tell him you are currently working on yourself and you need to go slow with this relationship.
Use "I" statements (I need to go slow, I need to work on myself....). If he does love you as he says he does, he will be just fine going slower and waiting for you.
Don't worry about him. Work on yourself. No relationship is going to work well until you get yourself better. You can do this!