I am a 33 year old female who has just given birth to my 2nd baby. Because I have gained a lot of weight during my pregnancy, I decided to go to the gym and lose a couple of pounds. However, I noticed that I'm terribly out of shape and I'm out of breath doing the simplest exercises. Moreover, I also feel that my chest is hurting and I'm always out of breath. I even see stars and I feel so dizzy. I am afraid that I may have a late onset of asthma but do you think it is normal for a person my age.