fat malabsorption?

Hi, I am 24 years old. i think i cant digest fats very well. It happens recently when i decided to increase my fat intake to improve my testosterone level which is low for my age. I noticed everytime i digest fats i either get headache,tired or short breath. or both. For example, Egg yolk, butter (super tired after digesting it, short breah), olive oil (headache, short breath), coconut oil (short breath), any kind of nuts (headache), red meat (short breath) but i have no problems with red meat already. God knows why. Also every time when i digest fat my stool doesnt well formed, it either burst one big chunk or very little comes out (constipation feel). and it floats which i believe its a big sign of malabsorption. i used to eat this kind of food with no problem. Also i want to add that i cant even tolerate with almost all type of supplements. Example: Multivitamins, B complex, protein shake, tried ox bile. All of this gave me headache and short breath.

I went to see gastro. He did basic blood test and he said the result is fine. Then, he referred me to food allergies . Which is next week. What concerned me is that, he said if the food allergies test came out fine, he said then i just have to eliminate the foods. In my mind if i eliminate 'fats' food, isnt that going to make my problem worse? hormones,mood,energy will be off without fats. I also tried doing Liver Flush where i found in this forum. Did it only 3 times. Olive oil and grapefruit. Doesnt seem to work. No stones, stool still floats. Or i must do more?

What do u guys think about my problem? leaky gut? Fat malabsorption? Liver problem?