Can having a low iron count which wud be low iron stores cause headaches and palpitarions?

Absolutely yes!: Anemia can be caused by iron deficiency. Anemia means you don't have enough red blood cells to carry oxygen around your body. This causes headaches and makes your heart work harder to get oxygen where it is needed. Symptoms of anemia also include feeling very tired, low energy, and short of breath when walking or exercising. Anemia can be easily treated, so see a doctor!