Doubt regarding correct meditation technique

I have been doing meditation for around 20-30 minutes a day for 5 years. One thing I have noticed is I absorb my mind in both the awareness of my whole body (as in physical sensations such as pressure etc), and also the sensation of the breath in the whole body, I can reach a state where thoughts slow down lots, sometimes even stopping for a while. It’s a pleasant state, but I doubt if I am practicing correctly as I’m not sure if this was the method recommended by the Buddha. Any advice would be appreciated. All the best :)