I see 4 elements in your dream they are
Hurt
Insecurity
Healing and
Moving On
Hurt:You are hurt and this disturbs you a lot the fact that your boy friend has left you is a matter of hurt
Insecurity: Your boyfriend getting a new person in his life creates further insecurity and hurt in you.
No one listening and understanding you. You finding a nail instead of handle and people laughing at you. You feel confined in the room and in your current situation.
Healing: You are trying to find the lost things this is in a way a good thing. Even your landing up at a hospital while searching is a sign of your hurt getting healed. You finding an empty room is a sign of you getting a space of your own where no one would ridicule or hurt you.
Moving On: First your sign of showing that everything is fine shows both the hurt and you trying to protect your self by not showing your wounds to your ex. Even your trying to find the lost stuff is an attempt to repair the damage done.
The Silver lining: I think the dream takes you from the place that shows injury (The Bus stop) to the hospital a place of healing and away from your Ex boyfriend so in realty you are moving away from the person who hurt you and this is a good sign.