(31) Do you feel depressed before menstruation? | 1. Severe 2. To some extent 3. A little 4. None | 1. Severe 2. To some extent 3. A little 4. None |
(32) Do you feel unstable (restless, want to cry etc.) before menstruation? | 1. Severe 2. To some extent 3. A little 4. None | 1. Severe 2. To some extent 3. A little 4. None |
(33) You can’t be concentrated before menstruation? | 1. Severe 2. To some extent 3. A little 4. None | 1. Severe 2. To some extent 3. A little 4. None |
(34) Do you feel breast tension and pain before menstruation? | 1. Severe 2. To some extent 3. A little 4. None | 1. Severe 2. To some extent 3. A little 4. None |
(35) Do you feel fatigue before menstruation? | 1. Severe 2. To some extent 3. A little 4. None | 1. Severe 2. To some extent 3. A little 4. None |
(36) Do you get rough skin and acne before menstruation? | 1. Severe 2. To some extent 3. A little 4. None | 1. Severe 2. To some extent 3. A little 4. None |
(37) Do you gain weight before menstruation? | 1. Severe 2. To some extent 3. A little 4. None | 1. Severe 2. To some extent 3. A little 4. None |
(38) Do you have sleep related symptoms such as drowsiness and insomnia before menstruation? | 1. Severe 2. To some extent 3. A little 4. None | 1. Severe 2. To some extent 3. A little 4. None |
(39) Do you have an abdominal pain during menstruation? | 1. Severe 2. To some extent 3. A little 4. None | 1. Severe 2. To some extent 3. A little 4. None |
(40) Do you have a headache or backache during menstruation? | 1. Severe 2. To some extent 3. A little 4. None | 1. Severe 2. To some extent 3. A little 4. None |
(41) What is your menstrual volume after having smartphone? |
| 1. Increased 2. Decreased 3. No change |