Hazel,
I've been on letrozole now for 18 months and SEs are gradually getting worse - sore, stiff hips, ankles, shoulders, night sweats, headaches, constantly tired and feeling nauseous.
However, when I started with letrozole I was on Femara, this came off licence and I was given Teva brand which was ok. With no explanation (cost presumably) for two months I was given the Arrow brand and I felt absolutely shocking. Much worse SEs and suffered some post-meno bleeding (the follow up to which is another long story! (No reason found!)). After these two prescriptions I started getting the Teva brand again and almost immediately felt a lot better (until the past two to three months).
I would suggest you request to go back to Teva.
Jo
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