missed period 20 days,bloaty stomache,lower back pain,hot & cold,loss of appetite,funny taste in mouth,headaches last 2 days needing to wee all the time with tingly feeling in bottom of stomache.Also feeling flutters in stomache.Im 46 years old & have had a few irregular periods earlier this year althou last 2 months have been almost on time.Do feel like i could be pregnant but not sure if it could be premenapause?I have 3 children aged 21,18 & 12.Will do a hpt test this w/e.What do you think?