My husband had a pretty bad stroke 5 weeks ago. Can anyone advise me?

He is at home now but I'm not getting any help or advise from anyone. ( I live in Hull, East Yorkshire, England ) I have rang H.A.T.s which stands for 'Hull Acute Therapy' and they can't help as they are short staffed, but will send someone when they can. Harry (my husband) is left handed and it's his left side that has gone so he can't do anything with his right hand anyway...........He can't controll his bowels and he has bad depression, one minute he's laughing the next he's crying. Now he has mouth ulcers. He is also eating like it's going out of fashion and he only weighs 10 stone (well, at the moment) He also has Rhumatoid arthritis which he's had a long time. Also they have diagnosed him with Parkinsons disease. Can anyone help with diet advise and exersise.