<human>: Condense the text into a few key points

My boyfriend and I have been together just over a year but have known each other for almost 3 years; we first met in high school. Now, though we are long distance whilst I'm at uni, it's been an incredible relationship so far. We visit each other twice a month, staying for the weekend, we talk every day, we laugh, we experience things together, we enjoy each other. In short, he's my very best friend. We have a real future together.

I've been home for the past month on Easter break and it's been lovely. We celebrated our first anniversary. Recently (past few days), however, thing's have changed. He says he feels very anxious when he thinks of me and is very nervous when talking to me/being with me. He also says that he doesn't want to be around me.  He has no idea why. He's completely torn up about it as we love each other very much and are so happy together; this is completely out of the blue and he can't understand why he feels this way. It's incredibly painful, for the both of us.

I've just spent the morning with him and told him to carry on his life as normal, that this will pass. He's into his sports so I made him promise me he'll still attend all his activities. Reddit, help! He hasn't been eating, sleeping, working, he can barely get out of bed because his anxiety and this sense of doom (specifically targeted at me) is crushing.

I love him so much, what can I do to help him through this??
<bot>: Previously wonderful relationship is being tested as my boyfriend says he's so anxious/uneasy around me and can't function in day to day life any more.