I am tired of being tired. Due to allergic reaction to my go iron infusion I now take a weaker one that takes 8 separate infusions over a 3-4 week period... and I need this about three times a year... so 24 infusion (plus 2 transfusions this year as I didn't get in soon enough). What have you tolerated as a supplement that might at least give me a bigger break between infusions? My crohn's is concentrated at the terminal ileum and in the past oral supplements have caused too much constipation... but haven't tried in 10+ years.... anything new out there with less side effects?