I hope you don't mind me tagging you but you seem to know what you are talking about and I am getting desperate!!
I have had what I have been told is achilles tendinopathy for about 6-8 years.
The symptoms came on suddenly all at once in both ankles. On a very hot summer's day suddenly both my ankles swelled up. The swelling is at the back of ankles on both sides from the top of the heel to where my calf muscle starts. In my right leg I also have swelling up the inside of the bottom of the calf. In addition,the outside of the top of the foot right next to my ankle is badly swollen. There was no pain at all but they did feel a little stiff.
The swelling all happened at the same time and has not changed in location since it first occurred. It does sometimes get a little worse but then generally settles back to where it was.
There was no injury but during the time it happened I was in the throes of hypothyroidism awaiting diagnosis which took about 18 months. I was v unwell so was not exercising at the time at all. Since then I have been diagnosed with Graves' disease with fluctuating thyroid hormone levels. So I have been both under and over active, and have had "normalised" thyroid hormone levels, for periods of time with no change in the swelling.
In the last few years I have become perimenopausal but am now on HRT. Again this does not seem to have affected the symptoms.
At some point during this period I have also developed plantar fasciitis. But this is controlled with the use of arch supports. As long as I do this I don't have any symptoms.
I have since an MSK ankle specialist via the GP and they diagnosed achilles tendinopathy. It doesn't just seem to be my Achilles that's affected though as the swelling is also on the front of my foot as I said above so assume the issue is also affecting the tendons there. Not sure what this is called?
Anyhow, I have seen three physios and been given exercise to do. The first time it was difficult to keep up with them due to being hypothyroid and generally feeling really fatigued. They also didn't seem to be doing anything. The second time I tried similar exercises. These aggravated my PF so they changed the exercises. I followed these for weeks before giving up as they made zero difference.
In the last 6/8 months after years if no change in symptoms they have suddenly started becoming painful and much stiffer. I now get a lot of stiffness in the morning and they are painful to walk on. This dissipates as I get going but they feel slightly stiff and sore almost all of the time now.
So about 2-3 months ago I thought I needed to give the exercises another go. Again I have just found they have made the pain worse. I have combined the exercises with icing the icing definitely relieves some of the pain but over time they are just getting more and more sore stuff and painful. I have gone very gently with the exercises ti try to build up slowly so I don't think I am overdoing it. I had expected that initially it might get worse but then ease off and so I could increase the reps etc but they just seem to be getting worse and worse!
I have left off the exercises a few days as I was worried I am damaging them more and they have felt a little better.
I don't know whether to persist with the exercises or not or whether there's anything else I could try. I am also concerned that the diagnosis is wrong which is why the exercises are not working. My DH also has tendinopathy and a bump but no swelling at all. Although our stiffness and pain seems v similar.
Oh I nearly forgot, I have also tried a period of "aggressive rest" and icing and that didn't resolve the issue either. This was recommended by my DH's GP but didn't work for either of us!