For the past couple of days, I have felt absolutely exhausted no matter how much sleep I get.
Also experiencing a lot of nausea, ESPECIALLY in cars (I did used to get car sickness when I was younger, moved up front and it was less of an issue but it seems to be back as of late) or even at any time. I haven’t actually been sick but I’m so scared that I will be.
Also occasionally having palpitations, and during this time I do tend to get blurry vision too. This morning I could smell burnt toast but there wasn’t any actually there
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This could be completely normal (especially since this time last year was extremely hard both physically and emotionally), and I am drinking enough water so doubt it’s dehydration. Also with that I have lost my appetite slightly and often feel hungry, despite this I’ve lost weight 
There’s no way I could be pregnant. Doubt it’s heatstroke. I used to have blood tests and ecg’s on a regular basis but this has stopped since coronavirus. I’m unsure as to whether this is normal or if I should see a doctor? I do get health anxiety so consulted Dr Google yes I know that was very stupid and now I’m worrying a lot especially as many close people to me have recently been extremely ill.