How to know if i have dysthymia (depression) ? symptoms include tiredness, lack of motivation & crying for no reason..?

Those sympotms: Would be consistent with a diagnosis of depression. Talk to your doctor to make sure there is not any other reason for your issues, and to start a treatment plan.

See a professional: Seek the help of your pcp or a psychiatrist. There could be several reasons for your symptoms, including depression, but a work-up by a physician will help answer your question.

Dysthymia: Is a milder form of depression, more chronic, in which the mood is persistently low. It runs in families, but exact cause is still unknown. Main symptom is low/sad mood on most days for at least 2 years (in kids/adolescents it can be irritable mood & lasts at least 1 year). There are also changes in energy, concentration, appetite & sleep.

Maybe: Sounds like you have some depressive symptoms, but you will need to visit a psychologist or psychiatrist to be sure. It is always wise to visit your general doctor to rule out other possible biological causes as well.

Psyche eval: Dysthymia (Dysthymic disorder) is chronic, mild depressed or irritable mood which occurs most days for at least 2 years in adults or at least a year in a child. Associated sxs can include: low energy, hopelessness, low self esteem, & problems with sleep, appetite, concentration & decision making.

Psychotherapy: Psychotherapy is an interpersonal experience between yourself and your therapist; it is a partnership. The therapist listens to whatever it is that is on your mind (in this case, depression), and with empathic, thoughtful questioning over time assists you in being able to experience yourself and the external environment differently than prior to coming to therapy.