I have changed from Femoston tablets to Evorel patches. I have been cutting the patches in half to see if a low dose was going to help me with the hot flushes and mood swings. I've been taking it for approx 2 and a half weeks and my flushes are coming back (usually when I'm in bed). I also feel my mood has lowered and I'm foggy headed. Should I start to gradually increase the dose and by how much for how long?