When they do a standard blood test panel, I think they check ALT, AST for the liver and creatinine for kidney function. So if you could get a regular physical, you should be able to check those things too. It might be possible to get this done cheaply at a health clinic.
I would not worry too much unless you have a past history of liver problems. Or liver symptoms, like pale stools, yellow skin and eyes, etc.
Your liver is on the right side, is that where your problems are?
Of all these, the only things that I would be concerned about are the wormseed and Wormwood , which are for short term use only. Please, if you feel anything really weird ( more weird then parasites coming out! ), stop taking it. And only take the amount recommended for the period recommended.