What i call summer sick

Karrie • I live with my husband have 1 giant baby (the dog) and an 12 year old step son who i love so much and would do anything for.xx

Hi can anyone help its been super hot the past few days and i have suffered with this problem since childhood that when i get to hot my asthma starts to play up and i can get violently sick and dizzy.this only ever happend in the summer or when its really hot anybody got any advice on how to stop it or suffer with this aswell