Crikey I'm so sorry, what a nightmare.
His case and mine are two that put the difference between NHS and private in pretty horrible focus, I'm really sorry that you both have had such a bad experience especially when there was no need - he should have been having blood tests at least fortnightly to start with for free and total testosterone / SHBG / prolactin / E2
The 'flu' feeling sounds like the male equivalent of hot flushes due to too much 'e' and not enough 't'.
Injections are so much more convenient and can give a more stable level. It's absurd that the PCT are wasting their money on the far more expensive patches when they could just give you guys either a multi-use rubber stopped vial of cheap testosterone enanthate/cypionate which will last as long as 3 months or even Nebido which is a shot every 10-12 weeks.
Maybe you guys are an advertisement of why the NHS doesn't really do TRT that much - they're not too hot at it.