Yes, you should contact the management office to learn if other similar units are available, and if so, request the transfer.
If no similar units are available, you would need to notify the management in writing of the fact that you are breaking the lease for previously disclosed medical conditions. Technically, you would be breaching the lease and the landlord could come after you for damages, but given the circumstances it is unlikely a judge would compel you to pay through the lease term given the facts.
Attorney
Negotiate, Draft, and Review many complex commercial agreements each year.