Medical Experts

Hi. I recently got gbs in may 2023. Some days I feel great and other days I can’t leave the bed and keep getting all tingly and unable to do much. I go to my local gp regularly. He does not seem to care too much and I feel he does not believe me. He is always asking why I have not gone back to work &
Is telling me I don’t do enough. I’ve worked a small bit. Once I done a few hours work and spent 2 weeks at home after it due to fituge & exhaustion. I have asked him if he can refer me back to the clinic as I want an opinion other then his and feel I am still very sick but is being very dismissive and won’t just ask them the question . It’s really taking a toll on my mental situation. Any help would be appreciated as I feel very lost. Thanks
Shane