Such an event can be due to multiple possibilities starting from lack of sleep completion to feeling anxious and get nervous.

Hi Freezing is an anxiety response of the body when it perceives threat in the environment. If this is happening in the social context u most likely hv social phobia, treatment of which is possible thru psychotherapy. You might have to take medications if it severely impacts your daily life.

It's a classical example of anxiety disorder. It affects performance and output. It needs to be treated asap otherwise it may get complicated. It can be well treated with counseling sessions and homeopathic medicine if required. You need an expert Psychologist who is a good homeopathic physician.

This could be due to lower confidence and self esteem. Consult a counselling psychologist who can help you explore the feelings behind freezing and find ways to address them more deeply. A psychologist can help in understanding the underlying factors and resolving inner conflicts.

Hi, Consult a psychologist.More details required.

Hi

Fogging of memory could be the result of plenty of mental health issues. If this is causing you significant distress in your everyday life, I would suggest that you seek help from a mental health professional.

Hi dear, More information is needed but by your provided information it is indicating about social anxiety.  Consult online for proper guidance.

Your difficulties in recollecting and recalling and also with memory may have many reasons that will have to be assessed by doctors. On the other hand, it could also be due to psychological reasons. My suggestion to you right now would be to begin addressing your problem through a physician / family doctor who may be able to check out if it is the result of any physical condition like vitamin deficiency or hyperthyroidism. There are many physical conditions that can trigger issues with memory. If your condition does not turn out to be related to physical health, please visit a psychologist and explore underlying mental health conditions, if any, and the ways to deal with them.

Detailed  case history is required to help you  better

Many times we freeze because we are afraid of the reaction we might get. Unless you actually try responding, how will you know if people will make fun of you or applaud you?

In-depth counselling and assessment may help in uncovering the reasons behind this, and also helping you navigate through social stress.