Bad weakness. Am in need. i am nervous.

Hi, yesterday night I fell very weak after office. Whole day I was okay. But after office I was so weak I couldn't talk properlly, just had dinner and lied down. It felt like my whole body is numb. I felt so uneasy that I couldn't sleep so I had wallyte water with salt before sleep . And tried to fall asleep. Actually I was sleepy but it took time to fell asleep. I want you to know for last 3 days am sleeping near 4:30-5 am in night. Yesterday also 6 am I went for sleep. And wake up near 7:30 and be awake till 8:30-9 then again sleep for 1 hour. It was like this for 4-5 days . So i dun know if it's suddenly affected my body or not. Coz I had proper food also. Today morning I woke up at 11 am. I slept from 1:30 am to 11 am . After this much sleep am feeling ok. But not so active. It's like not feeling like getting up from bed but also staying in bed making me feel sick. Am little tensed if it's not a serious issue. Please help. Am in need. I am nervous.