I am sorry you are struggling. I have been doing some research and it seems GPs are woefully incompetent when it comes to ferritin levels. There is a group on facebook called the iron protocol. It mainly consists of menstruating women or women of menopausal age complaining of distressing symptoms such as significant fatigue, breathlessness, hair loss, headaches and palpitations but being dismissed as their ferritin is "within range". When in reality, optimum ferritin should probably be above 100, and women can be symptomatic with low ferritin with levels as high as 75, some even more.
I am currently awaiting my ferritin results back, I am hoping for an iron transfusion, but I don't think they will do that unless my levels are under 3. I don't think they are going to be that low. My GP has been very dismissive, I told her how heavy my periods are (about half a pint a month), how I'm needing to nap every afternoon, brain dog, palpitations, etc. She tried to suggest it was mental health related which I 100% know it isn't.
For years I have always just felt I was a 'low energy' person, I saw people doing things and thought how on earth do people have the energy. I dismissed by need of having naps all the time as just enjoying sleep, and my inability to retain new information and concentrate on just being a bit dim. Recently it has dawned on me that I did not use to be like that, in fact in my early 20's sometimes I would have so much excess energy at the end of the day I was restless and had to exercise, run or walk to burn it off, now I'm exhausted by just sitting here!
It makes me wonder how many women who have been told that they have depression, anxiety or chronic fatigue just have ferritin / iron that is below their optimum amount but have been dismissed as it is above their guidelines for intervention. There are women on that group who say that if their ferritin dips below 100 they start to get fatigued and depressed, and there are women in the UK who are allowed to walk around with numbers of 5 and told it is nothing to worry about!
The facebook group offers good advice but it takes a while to get numbers up with supplements. I would persist in trying to get an infusion though, I am planning to pay privately, it is not something I can afford comfortably, but I am desperate to feel better. If this were not an option, I think I would just nag and nag the GP until something was done.