Samantha, a 32-year old patient, was admitted to ER due to a partial paralysis (she had difficulty walking and she was losing balance) and tingling sensation in her fingers. The doctors ordered multiple tests, but none of them revealed anything. Everything seemed to be fine. Samantha went through a very rough divorce 4 months ago. Recently she started noticing that her memory was not functioning properly, she was not able to focus and she was experiencing inexpiable bouts of anxiety. Since the medical tests did not reveal any medical condition, her likely diagnosis is _____________________, code: