Why did I have a seizure when trying to take Paragone

I have had one positive experience taking Paragone last December, where I had typical cleanse side effects but came out of the cleanse with a noticeable decrease in the intensity of my symptoms and feeling much more energized and healthy. Throughout the cleanse I also found things that led me to believe I was heavily infested with a Tapeworm and possibly roundworms and candida. My parasite symptoms returned about a month after finishing my Paragone cleanse, and over time they worsened. I tried to take Paragone again last month and I experience my first seizure. My limbs began jerking around uncontrollable for about an hour and we had to call an ambulance.

I have noticed new symptoms emerging and old symptoms becoming more serious recently. I feel faint and see black when standing, have severe headaches that last for hours, itching all over my body that is extremely intense, abdominal pain that requires me to sleep with an ice pack, body aches, and sometimes even feeling that I may die soon. I have had many almost blackouts where I see black when trying to walk and sit down quickly, then getting a tingling in my hands when I sit and the black goes away.

My doctor refuses to treat me for parasites of any kind because the stool test came back negative. I have tried to find some worms in my stools, but haven't been that lucky without taking more Paragone. I did find one stool with a large cluster of worms and what looked like a Tapeworm scolex, which I took a picture of and I am debating showing to my doctor.

I am curious if my new onset of neurological symptoms is of any relation to the parasitic infection worsening and/or spreading throughout my body. Why would I have a normal reaction to Paragone in December, but now have a seizure when I try to take Paragone?