Fed up and doctors no help advice please

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I had a miscarriage 8 weeks ago and still haven't had a period since. I feel ill all the time since and feel like my hormoanes just can't get back into a normal cycle. I've been to see the doctor who was no help didn't even check me over at all just said to leave it another 4 weeks then come back if I'm no better and period doesn't arrive 😞