Its probaly because youre not eating well,your body needs nutricion.Why are you skipping meals?Lily
If you are skipping meals then this could be the reason why you are having dizzy spells,you are at a vital stage of growing up your hormones are changing,and your body is preparing to change from a girl into a young lady,you must make sure you are eating properly and looking after yourself,if this continues you must tell your mother what is happening.
Did this dizziness occur before you started skipping breakfast? If not, it could very well be that your blood sugar is dropping, which causes anxiety, dizziness etc.. It is in no way natural...Try eating breakfast again, and get your body back on track. Much luck