I am eating one sanwich with lots of cuber and tomatoes in breakfast ,a gl banana ,strawberry milk?

And in lunchone indian bead with vegetables nad yoghurt,and one apple.and diner light soups or anything homecooked but not king size. and do yoga nad walking and eat good ammount of fruits and milk is it o.k? i lost few inches and 2 kgs in 3 weeks.what do you think ? i do take multi.vit. capsules everyday.