Feeling slightly sick or dizzy after a massage, particularly a deep tissue massage that involves intense pressure on your body, is quite common. It’s normally as a result of dehydration - a deep tissue massage releases toxins from your lymphatic system that build up under your skin. The best way to remedy this and flush out those toxins is to stay hydrated, so make sure you drink a little water regularly before your massage and hydrate thoroughly afterwards!
However remember, if you are feeling any severe discomfort, pain or sickness after your treatment, you should talk to a healthcare professional.