Hi squaregirl,
As far as I understand, headaches are a pretty common symptom of fibromyalgia. I've also experienced visual disturbances during bad flare. As far as phantom smells, someone posted a while back about being able to smell smoke all the time, although this is not a symptom that I've come across otherwise. Perhaps others here will be able to share similar experiences.
If you're doing plank pikes and leg lifts, it sounds as if you're used to doing pretty intense workouts! I can share my experience of this, as I used to be very athletic - a
go hard or go home type
I can see that your diagnosis is pretty recent, so I fear you won't want to hear this, but for those of us who have spent a lifetime pushing through discomfort, it can be vital to recognise that fibromyalgia likes to put the kibosh on this approach. That doesn't mean you can't be active, but probably - as suggested by your headaches flaring - you'll need to go back to the drawing board and experiment to find out where your new limits are, and what causes overexertion-related flares. Sounds like you've already started this, but thought it worth saying: run with that instinct!
I used to weight train a lot, horse ride, run, cycle, etc. Looking back, I can now see that my fibro symptoms had gradually been ramping up over several years, but when the full manifestation finally arrived, I started having real trouble doing anything active. If I went to the gym and trained the way I used to, I'd feel like I'd been hit by a truck for a week. The more I tried to push through it, the worse my symptoms became - until I eventually hit the wall and wound up in bed for months. As I started to recover, I managed to get a handle on things by building up very slowly to see what my body could tolerate (as well as making a lot of other changes in my life.) This started as walking 10 minutes a day, then progressed to walking or swimming 20 minutes a day and doing ten-minute bodyweight workouts. Eventually, I settled at walking around 45 minutes, and also switched out heavy weight training for doing work with lighter weights - trying to find obscure exercises that could challenge my muscles without the need to pick up such big hunks of metal!
I still have to listen very hard to my body. If it tells me it doesn't want to move, then I don't force it. The frustration of this took me a while to get over, but the results have been worth it. I suspect that if you can try to find your own sweet spot it may help you manage your fibro symptoms - including your headaches. Perhaps try keeping a symptom/activity diary to pin-point potential triggers. I hope that's helpful - sorry if I've jumped in on something you're already on top of!
I hope your headaches improve soon