Food allergy, stomach pain, itchy, stinky breath, leg pain, flatline on percentile...

[Disney Mom]

...charts? Any ideas?

He was breastfed and constantly spit up (like waterfalls). From birth he was itchy. At about a month old he developed what his doctor called " the worse case of baby acne she had ever seen." His face looked like Freddy Krueger. He would wake up constantly in the middle of the night screaming in pain with his stomach hard as a rock. A few of times he had spots blood in his stool.

Around 1 year he would wake up 2-3 times at night being itchy and scratching his legs.

When he began eating food (around 6 months) he would occasional get a rash wherever the food landed on his face or body. (milk, ice cream, Cheetos, pirate booty, peanut butter--but other milk products didn't do this to him?) When he was 15 months he got hives from a Burger King breakfast sandwich.

After he got a rash from peanut butterI, have taken him off of peanuts.

At his 3 year old check the doctor was concerned about his height and weight and I asked to get him tested for food allergies.
He went to get a blood test and came back allergic to almost everything tested. His IGE was 1644. They blood tested him again and took stool samples. His IGE a week later was 2744.

Next he was sent to an allergist for a scratch test. He came up highly allergic to cats ( I have not seen a reaction in him yet), slight olive trees, and slight mik allergy.

His allergist wants him to do a single blind test to see if he is indeed allergic to milk.

Can a slight milk allergy cause of the symptoms I listed, or could it be something more serious? Does an allergy to milk cause foul breath at night? He wakes up crying and his breath has a distinct bad odor. I couldn't find anything and was wondering if anyone else had experience.

SORRY for being so wordy. Just wanted to be thorough. So far all the doctors I have taken him to can't figure it out.
Until 2 1/2 he woke up in the middle of the night. He is almost 3 1/2 now and he wakes up at night probably 4 times per week.