Maybe you are more talkative/excited when you feel less depressed? If your husband is used to you being depressed as a normal state of affairs, then when you seem happy, it may seem like something's wrong even though it is a sign that things are going well! I would be very annoyed to have someone asking me if I took my meds because I seemed more talkative than usual but another part of me would worry that he saw something I didn't see. Making an appointment with your old therapist sounds like a great idea because you can get another take on it.