Hi just need some advice please,Been feeling unwell for months, Fatigue,Aches and stuff,Had toothache in march but obviously couldn't go untill August,I was told needed root canal work,Had first session then suffered swelling so antibiotics,felt loads better after that,Went for more treatment Tuesday this week was told still infected need to go again in 2 weeks,felt severely tired wed and today rough again as pre treatment,should I get rid of the tooth as I think this has caused all illness??