This is a very common fear, however there is no technical name like "claustrophobia" simply because it in itself is not a phobia. I heard somewhere that it has to do with OCD and even people without OCD can have this fear. It really is just the fear of being restrained.
If you mean the fear of being bound [like held back], then it is:
Merinthophobia
zippaphobia
There does not appear to be a scientific name to describe the fear of crutches. Perhaps the fear stems from a fear of 'not being able to walk' or 'being slowed down' in some way. It may even stem from a fear of 'losing one's independence' or a fear of 'asking for help".Xylophobia is the fear of wooden objects or forests.Traumatophobia is the fear of injury.Climacophobia is the fear of stairs, climbing, or of falling down.
Restrained, constraint
There is no exact name for it. (I take it you mean that they starve and have a fear of being hungry, not a fear of hunger and a fear of starving, which would be two opposite things). However, both are ideals held in eating disorders, the two most common being bulimia and anorexia.
You might be separated from your family.
There is no official phobia for a fear of disappointing someone or being disappointed. However, the fear of failure is called atychiphobia.
you have a fear of being let down by people you admire
The fear of being in the dark is Lygophobia. The fear of dark or night is Nyctophobia.
an irrational fear of sitting down. an irrational fear of sitting down.
Fear Will Drag You Down was created in 2002.
Algophobia is the fear of feeling or being in pain.
Cherophobia is the fear of being happy. Individuals with this phobia may fear that their happiness will be short-lived, or they may associate happiness with negative consequences. Treatment typically involves therapy to address underlying issues.