Episode has changed …. Covid?

Having had Episodic Cluster Headaches for 36 years I felt confident I knew what would happen in each episode, and how long it would last. However, I am now having my first episode since Oct 2021, when I also contracted Covid in the middle of the episode, and the whole experience has been very different and very difficult. Could Covid have changed the nature of the episode?

It has been the worst episode since I received a diagnosis and proper treatment 7 years ago (but perhaps not as bad as the 29 years of non-treatment!) Instead of 5-6 weeks the current episode has lasted 8 weeks so far. The prednisolone treatment (usually fairly effective) has not stopped headaches breaking through every day. My thigh has become a pin-cushion for sumatriptan injections, which are the only thing that have saved me, although getting hold of these has been a real challenge. I am now approaching week 9, and having a miserable shadow headache every morning, and the occasional breakthrough headache if I let my guard down and try to live a normal life. I am off the prednisolone and trying to avoid any more sumatriptan. But no sign of symptoms stopping, so perhaps this is now a permenant condition?

Of course it might not have anything to do with Covid. Has anyone else had similar experience where their long established pattern has changed so dramatically and unexpectedly?
 

thanks