Underweight in the Keto diet

I do benefit from low carb diets emotionally, however, when I cut carbs, I am not meeting my calorie needs, and am 20lbs under my ideal weight (6’0” and 145-150lbs, my ideal weight is 170lbs according to the TDEE calculator).

People recommended that I eat tree nuts or avocados, however I get an allergic reaction to both.

I am just tired of being a twig. I don’t have the desire to excercise as it will use more calories and might make my BMI officially underweight.

I don’t know what to do. I don’t want to drink raw greasy olive oil to get my calories. I don’t want to resort to carbs again which make irritable, impulsive, less focused, and paranoid.