Symptoms

Symptoms vary in the progression of tay-sachs disease.

3-6 months old:

• low muscle tone
• muscle weakness
• sudden contractions of large muscles
• increased startle response

6-10 months old:

• lose ability to perform tasks (ex: sitting)
• decreased eye movement 
• decreased attentiveness
• "cherry red spot" in eye; seen during eye exam

https://www.google.com/search?q=tay+sachs+symptoms&espv=2&biw=1366&bih=667&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjMxqHznJvLAhVO3mMKHRUaDqUQ_AUIBigB#tbm=isch&q=red+cherry+spot&imgrc=IUQrfu7tfsCbFM%3A

8-10 months old:

• moves less 
• becomes less responsive 
• vision is lost
• seizures occur
• growing head size

Above 2 years:

• trouble swallowing
• progress to vegetative state
• death usually occurs between 2-4 years old; mostly due to pneumonia 

Reference: https://my.clevelandclinic.org/childrens-hospital/health-info/diseases-conditions/hic-Tay-Sachs

https://www.google.com/search?q=tay+sachs+symptoms&espv=2&biw=1366&bih=667&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjMxqHznJvLAhVO3mMKHRUaDqUQ_AUIBigB#imgrc=-9zu0t53AI3K9M%3A

Reading these symptoms makes my stomach turn. 

No parent should ever watch their child go through this.