Hi, fairly new at this but here goes... Over the past 2 weeks or so I keep going really lightheaded and dizzy, it only seems to happen at certain times of the day (around 8am, 3pm & 10pm roughly) each day, I've also been feeling extremely tired and over the past couple of days have had a strange pain in my stomach (bottom, above the pubic bone) like there's slight pressure on it, also keep feeling really sick but not actually being sick and had constant headaches which are sometimes unbearable. Period isn't due for around another week and a half so don't know when is best to test? Thank you in advance!x