Before I do my last test before GP treats me. Adrenal Q

Ok, sorry to be a pain posting again about my situation. You all know I had bloods done in August last year

TSH 5.35 (0.35-5.5)

FT4 11 (7-17)

I went private with Blue Horizon in January and ...

TSH 6.54 (0.27-4.2)

FT4 14.8 (12-22)

I then had a re test done 7 weeks later in March, which I will post on here. 

I am suffering from chronic fatigue symptoms. Daily I feel fatigued and I was crashing after over doing things. Simple things like too much yoga, or too much housework. If i get stressed I crash badly. By a crash I mean so weak, fatigued, weak limbs, anxious, tearful, tiredness like I have never felt before. Those crashes were daily but recently had become less frequent until the last 2 weeks when they returned and have been happening every other day, which is so dissapointing.

My fatigue began in May last year. Just a general fatigue and noticed I felt weak for days after exercise. Hence why the GP did bloods in the August. He said the thryoid was fine but my ferritin was 15 and B12 was 212 so I supplemented. Now the B12 is up to 477 and Ferritin at 34.

Then in October last year my son was ill, he was being bullied and told me he was suicidal. My world fell apart and within weeks my symptoms of fatigue worsened to the point when I walked I felt I'd collapse, the floor moved as I walked and I was crashing daily. I was a wreck and couldn't function. My GP diagnosed acute stress due to my young son being so unwell with depression and panic attacks. The stress of seeing him like that and having to help him with no support was tough. I had anxiety 4 years ago after my brother tried to attack me and i cut my family out all the stress triggered and anxiety disorder which was under control and life was great again, away from my family that hurt me and all that stress. That happened in 2012 and after a tough 18 months I felt well again, until this all started last summer.

Now my son is well and things for me felt a little better until the crashes returned recently. I have been trying a vegan diet so I do wonder if that's to blame.  Daily I feel so fatigued, weak, no energy to do anything and if I try I feel so ill for days after. I push myself daily, walk my dogs, do yoga, lots of healthy cooking.... I keep busy and am happy but then I crash badly from doing too much. I have been like this for 6 months and my GP recently said now the TSH has risen to 7.5 he is classing me as subclinical as they don't treat until it reaches 10. He would like 1 more test to be done in the next 2 weeks and he promised then he would treat.

When I posted here with my latest results a month or so ago I had many suggest I didn't have an actual thyroid issue, more an adrenal issue from all the stress i have been under as the stress has led to my anxiety disorder and agoraphobia rearing it's head again which I haven't had in a couple of years.   My FT4 is rising, it was 14.8 on Januarys test and 15.8 in March. The TSH is also rising. It rose from 6.54 to 7.51 in 7 weeks. My GP is a little confused as to why the FT4 is rising which does put him off treatment but as TSH is rising he says he will treat after the next test showing a continued trend of rising, then he has a case to prove he can go against the NICE guidelines. 

Can anyone give me any input? I want to make sure I am doing the right thing taking the thyroxine. I am worried why my FT4 is rising and TSH at the same time. I eat well, take care of myself yet I continue to struggle with this chronic fatigue type illness. It's awful. I am not gaining weight, I am not losing either but I do take Mirtazapine 15mg for anxiety which did make me gain weight and it's hard to lose any on it too. I take the pill Loestrin for heavy periods, which I do want to wean off but right now due to how unwell I feel I am not sure i could cope with the heavy periods making me fatigued more so. My main symptom is this crippling fatigue and the crashes i experience.

I shall attach the latest results.

Thank you all for your continued support.