Firstly, I am asthmatic. For the past few weeks I have been experiencing breathing problems where I always feel I lack breath and when I take a deep breath it would hurt and I would almost have to force to take a deep breath. The left of my chest also feels a tickling sensation. Similarly, I have been experiencing shortness of breath where I get shortness of breath much quicker when exercising. Thank you in advance for any possible causes for this. My asthma is not severe, however, I am not sure it might be worsening or if this is asthma. I am also 13.