Yes, with no reason I had back pain. I did not lift any heavy things or do any heavy work activities melainkan masa pindah hari tu itupun upah orang buat. Went for a visit to my family doctor just now and he said the pain was nothing to do with lifting any heavy things. It most probably due to muscle cramp and he gave me a muscle relaxant pills and medical leave adoiiiii tak ada angin ribut tetiba je, cobaaaaaan!!!