Asthma symptoms vary from person to person. You may have infrequent asthma attacks, have symptoms only at certain times â such as when exercising â or have symptoms all the time. Asthma signs and symptoms include: 1  Shortness of breath.  Chest tightness or pain.
The definition of an amendment is a change, addition, or rephrasing of something, most often with the intention of improvement. An example of an amendment are the changes made to the U.S. Constitution. 1  a change for the better; improvement.  a correction of errors, faults, etc.
An amendment is more commonly used than an addendum. In simple words, amendment means making changes in an already existing agreement. On the other hand, Addendum means including an additional document in the already existing one. An amendment can also be called as correcting a document or improving the document.