There isn't a norm, OP. You're looking for some external set of rules to guide you as to whether it's right to feel the way you do.
It is ALWAYS right to feel the way you do, however you feel. Your feelings aren't things that need to obey rules. They are the rulebook you're looking for.
Stop analysing whether your feelings are right or wrong. There is no such thing as needy. You are the right amount of needy for you. That's how needy you are. More than some people, and less than other people. Allow your feelings to dictate the way. You are feeling neglected, sidelined, sick, anxious and preoccupied with these negative feelings, and yet all of your thinking is about how best to accommodate what he needs.
WHAT ABOUT YOUR NEEDS? He is not meeting them. You are not feeling emotionally close enough with him to talk to him about the fact that he's not meeting them. You are considering changing your own behaviour and putting yourself in the wrong because he is not meeting your needs.
Don't try to alter feelings to fit in with with how people want their relationship with you to be. Choose your people to fit in with making sure your needs are met. Choose people you feel great with, people who make you feel the best you can be, people who boost your confidence and make you laugh and cherish your feelings, even the tough ones.
Change your script. There's no such thing as normal. There's no rule book about what a relationship is meant to look like. You make the rules; it's your life. You are in charge of looking after your feelings, so get into the driver's seat and take responsibility. Tell him he's not meeting your needs. If he steps up, great. If he doesn't, walk, and find somebody who is interested in giving you what you need to be happy and fulfilled, and feel emotionally safe.