I have gotten progressively ill and recently have to use a wheelchair. I'm trying to get used to a chair with wheels and its hard. 
Oh no, i'm so sorry to hear that but also I'm curious to know when the first wheel chair was made
Goodness, I think they've been around since almost the beginning of time.  I saw a show that talked about seeing images of them around 525CE in Chinese art.  
Wheel chairs must be strong, what are they made of?
Now a days, they are made of metal and flexible plastic for the seating portion but mine is made of metal and more of a hard plastic because its powered; which involves batteries to help it move on its own.