Albuterol can cause your heart to speed up after your take it which can cause some of the symptoms you are feeling if this is happening after you have a treatment. If not associated with the albuterol, there is a couple possible causes. In most cases, palpitations in young people are due to extra heart beats like premature ventricular or atrial contractions which are generally benign and just variations of normal. Alternatively, some people can have episodes of arrhythmias where there heart races. If this was the case, it may be something that needs to be treated. If your heart rate is not fast during your symptoms, it is most likely benign, though I would recommend that you discuss this with your doctor. If you are concerned, they could fit you with a temporary monitor to ensure that there is no abnormality. I would also try to avoid stimulants like caffeine, etc as they can make symptoms worse. I hope this helps.
Please see a good cardiologist --it could be nothing but go and get tested to ease your mind.
am 22 yrs old ,even i have the same problems like u,i am seeing my heart beat directly in my chest,this is happening from my 15th age,i have palpitation problems i feel,am afraid of this...