Is a deficiency in vitamin d, hight cortisol and prolactin, too much ldl cholesterol a sign of hypothyroid ? symptoms dry skin, astheny and low libido

Forgive my frankness: Your lack of vitamin d is probably the result of your getting too little in your diet and not getting enough sunlight. A spot cortisol is of little value except as a screen for addison's which i will assume is ruled out. Your high prolactin and low libido in a man with some serious acne like you're being treated for makes me suspect strongly that you have a prolactinoma.