You are not alone! My little girl, Alex, was (and still is) extremely attached. Starting at birth, she would not sleep unless she was in my arms, or sometimes in my husband's arms. She would only get to sleep by nursing. She would never sleep in a bassinet or crib...we co-slept (and still do). She was also more of a snacker when it came to nursing...never a full BF session, just a snack here and there between bigger feedings so I was nursing every 1-2 hours....she was not a small baby either...she was over 9 lbs.

From birth til about 15 months, Alex would not go to sleep until we did, even if I nursed her down, she would wake when I stepped away and after getting into bed for the night, she would wake every 45-60 minutes to nurse at night. This is why I weaned her at 15 months. I had originally wanted to nurse her til 2 years but I was starting to loose it big time and was becoming non-functional.

I wish I had a solution for you but at least it isn't just you.

Wonder why you may be feeling angry and frustrated?

I wonder what need you have that is not being nurtured.
Could it be that you:
-- have need for peace and rest?
--have need for your baby to be more independent?
--have need for clarity as to what is happening in you and/or your babies? need for understanding?
--have need for support, so that you can tend to some of your own needs?
--have need for empathy, perhaps only you feel the burden of your babies care?
--have need for self-empathy, perhaps you are feeling like you failing your expectations as a "good" mother?

I wish I could know what is going on with you that is making you frustrated and angry.
I can only guess..

In regards to your feelings.. I think it's perfectly normal to feel angry and frustrated.. it simply meens you have some unmet needs that you are figuring out how to take care of them..
if you have an inner dialog with some self-compassion, I think it may diffuse some of this frustration..but you still have to figure out what is happening.

Your baby, at night, may just have need for exploration, fun, and excercise.. perhaps he needs to get his need for those things done in the day.. and at night he may have more of a need to rest..

..my two cents...