Sudden heavy feeling in arms and exhaustion at 33w

[NooNooHead]

I’m feeling slightly odd this evening and in the last 15-20 mins have suddenly felt a very heavy feeling in my arms and like i’m too tired to move... it might just be exhaustion but I did have a bit of low blood pressure at my 32w appointment today...

Am I worrying over nothing? Does tiredness suddenly kick in during the third trimester again?

Not sure about the other symptoms but tiredness can definitely kick in again in the third trimester for many women.
If you continue to feel unwell and you are worried best to get checked out.